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    Geography GCSE

    Geography GCSE glossary

    785 key terms for Geography GCSE, A to Z, each linked to the topic pages that use it.

    785 terms found. Open a term to try a short memory check.

    A

    Abiotic components
    The non-living parts of an ecosystem, including climate (temperature and rainfall), soil type, light levels and water availability.AQA
    Abiotic Factors
    The non-living physical characteristics of an ecosystem, such as climate, soil, and sunlight.Pearson Edexcel
    Abiotic Resource
    A resource obtained from the non-living environment, such as minerals, water, and wind.Pearson Edexcel
    Abrasion
    Rocks embedded in the base and sides of the glacier act like giant sheets of sandpaper, scraping and scouring the bedrock as the heavy mass of ice moves.AQA, Pearson Edexcel
    Accuracy
    How close a measurement is to the true value, and using equipment such as a digital clinometer rather than a manual one reduces human error.AQA
    Acidification
    The process of soil or water becoming more acidic.Pearson Edexcel
    Active layer
    The layer above the permafrost that thaws seasonally during short summers, while the permafrost remains permanently frozen.AQA
    Adaptation
    Unique features of flora and fauna that allow them to survive severe moisture deficits, such as water storage in fleshy stems.AQA, OCR, Pearson Edexcel
    Adaptive Capacity
    The ability of a system, society, or individual to adjust to potential damage, take advantage of opportunities, or cope with the consequences of a hazard.Pearson Edexcel
    Aeolian processes
    Wind processes that blow dry sand inland from the beach to form sand dunes.AQA
    Aeroponics
    Suspending plant roots in the air and misting them with nutrients, which saves water and space.AQA
    Afforestation
    Planting trees, which acts as a carbon sink as trees absorb carbon dioxide from the atmosphere during photosynthesis.AQA, Pearson Edexcel
    Agribusiness
    The application of corporate business skills to agriculture, treating farming as a large-scale commercial enterprise controlled by large corporations.AQA
    Agricultural Drought
    When there is insufficient soil moisture to meet the needs of a particular crop at a particular time.Pearson Edexcel
    Agricultural Sector
    Water used for farming, primarily for irrigating crops and sustaining livestock.Pearson Edexcel
    Albedo Effect
    The reflectivity of a surface.OCR
    Alluvium
    The sediment deposited on a flood plain, laid down in successive layers during floods.AQA, Pearson Edexcel
    Altitudinal Zonation
    The change in ecosystems and biomes at different elevations on a mountain due to decreasing temperatures.Pearson Edexcel
    Annotation
    An annotation goes further by adding explanatory text to the label, explaining how or why the feature formed, or its significance.AQA
    Anthropogenic emissions
    Human emissions of carbon dioxide and methane that drive the enhanced greenhouse effect.AQA
    Anthropogenic impacts
    Human activities are identified as the primary driver of recent, rapid global warming.AQA
    Appropriate technology
    Small-scale, sustainable and affordable solutions suited to local communities, such as solar-powered pumps or sand dams in low-income countries.AQA, Pearson Edexcel
    Aquifer
    An underground layer of water-bearing permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt).Pearson Edexcel
    Area
    The size of a feature, often estimated on an Ordnance Survey map using grid squares, where one grid square typically represents 1 km².AQA
    Arête
    A knife-edged ridge formed when two corries erode back-to-back.AQA
    Aridity
    Extreme dryness with under 250 mm of annual rainfall, acting as the primary abiotic driver of the ecosystem.AQA
    Atmospheric circulation
    The general atmospheric circulation model explains how thermal energy is redistributed across the Earth through three distinct convection cells in each…AQA
    Atmospheric pressure
    Rising air creates low pressure, often bringing rain, while sinking air creates high pressure, bringing dry conditions.AQA
    Attrition
    Rocks and pebbles carried by the waves smash into each other, breaking into smaller, smoother and rounder particles over time.AQA

    B

    Backwash
    The movement that carries sediment straight down the beach at a right angle to the shoreline under the influence of gravity.AQA, Pearson Edexcel
    Bankfull Discharge
    The maximum amount of water a river channel can hold before it overflows its banks and floods.Pearson Edexcel
    Beach nourishment
    Adding sand or shingle to a beach to make it wider and higher, increasing friction and absorbing wave energy.AQA
    Bilateral aid
    Aid given from one country directly to another country.AQA, Pearson Edexcel
    Biodiversity
    The immense range of species found in tropical rainforests, which contain millions of species but make the ecosystem vulnerable to human disruption.AQA, Pearson Edexcel
    Biodiversity and ecosystems
    Rainforests are vital for biodiversity, housing over half of the world's plant and animal species.AQA
    Biodiversity loss
    The loss of a single species, such as krill in the Southern Ocean, which can cause a catastrophic collapse of the entire ecosystem because species are highly…AQA
    Biological adaptation
    A feature of plants or animals that helps them survive the physical conditions of their environment.AQA
    Biomass
    Renewable organic materials, such as wood, agricultural crops or wastes, used as a source of fuel.Pearson Edexcel
    Biomass fuels
    Fuels whose use causes indoor air pollution.AQA
    Biome
    A large-scale global ecosystem characterised by its climate and the dominant vegetation and animal life.Pearson Edexcel
    Biosphere
    The living layer of the Earth, including all plants, animals, and microorganisms, and the environments they inhabit.Pearson Edexcel
    Biotechnology
    Altering living organisms, such as genetically modifying crops designed to resist pests or drought.AQA
    Biotic components
    The living parts of an ecosystem, including flora (plants), fauna (animals) and bacteria.AQA
    Biotic Factors
    The living components of an ecosystem, including plants, animals, fungi, and bacteria.Pearson Edexcel
    Biotic Resource
    A resource obtained from the biosphere (living things), such as forests, fish, and fossil fuels.Pearson Edexcel
    Bottom-Up Approach
    Small-scale, community-led development projects that involve local people directly in the decision-making and improvement of their area.Pearson Edexcel
    Bottom-up development
    Small-scale, community-led development projects usually funded by NGOs, focusing on sustainable local improvements.Pearson Edexcel
    Brandt Line
    An imaginary line drawn in 1980 separating the richer 'Global North' from the poorer 'Global South'.Pearson Edexcel
    Brownfield Site
    An area of land that has been previously built on and is now derelict or unused, often former industrial sites.Pearson Edexcel
    Brownfield sites
    Previously developed land requiring costly decontamination but preserving the countryside.AQA
    Buffer strips
    An improved agricultural practice that helps manage and reduce pollution at its source.AQA
    Bulldozing
    Process where the snout of an advancing glacier pushes loose rock and debris forward, much like a mechanical bulldozer.AQA
    Business parks
    Clusters of commercial offices and light industry that provide purpose-built office spaces on the edge of towns.AQA
    Buttress roots
    Roots that provide stability for tall emergent trees in shallow, nutrient-poor soils.AQA

    C

    Cap rock
    A layer of hard, resistant rock overlying softer rock.Pearson Edexcel
    Capacity to Cope
    The ability of a country, community, or organization to use available resources to manage and recover from a disaster.Pearson Edexcel
    Carbon capture and storage
    Traps carbon dioxide produced by power plants and stores it deep underground in geological formations.AQA
    Carbon footprint
    A measure of the total greenhouse gas emissions caused directly and indirectly by an individual, event, organisation, or product.AQA
    Carbon Sink
    Trees act as a vital store of carbon, which is released into the atmosphere as carbon dioxide when they are felled and burned.AQA, Pearson Edexcel
    Carbon sinks
    Trees act as these, absorbing carbon dioxide through photosynthesis.AQA
    Cartographic interpretation
    Identifying specific physical or human features using the map key and interpreting the spatial relationships between them across various geographical contexts.AQA
    Cartographic methods
    Methods that use maps to present spatial data, including choropleth maps for regional variations, flow-line maps for traffic movement and proportional symbols…AQA
    Cartographic skills
    Skills used to identify and describe physical features as they are shown on large scale maps, using map evidence such as grid references, contour lines and…AQA
    Cartographical presentation
    Selecting the most suitable map-based technique, such as proportional symbols or choropleth maps, which are ideal for showing spatial variations.AQA
    Case study application
    Naming a specific UK upland area and its named landforms, rather than listing landforms without linking them to the chosen example.AQA
    CBD (Central Business District)
    The commercial and administrative heart of a city, characterised by high land values and tall buildings.Pearson Edexcel
    Central Business District (CBD)
    The commercial and economic core of a city, characterised by high land values, high-rise buildings, and excellent transport links.Pearson Edexcel
    Central tendency
    Measures of central tendency (mean, median, mode) summarise data.AQA
    Channel straightening
    A method to increase water velocity and clear water quickly, which can increase flood risk downstream and destroy habitats.AQA, Pearson Edexcel
    Channelisation
    The artificial straightening or altering of a river channel by humans.Pearson Edexcel
    Chemical weathering
    The breakdown of rock through chemical reactions that alter the rock's composition, such as carbonation.AQA
    Choropleth map
    A map that uses shading to show average values in areas, like population density per square kilometre.AQA
    Choropleth maps
    Maps that use shading to represent data density, such as population per km², requiring careful reading of the key to match colours to values.AQA
    Classification systems
    Different ways of classifying parts of the world according to their level of economic development and quality of life.AQA
    Cliff profiles
    The shape and steepness of a cliff face, influenced by the dip of rock strata, with seaward dips creating unstable slopes and landward dips forming steep,…AQA
    Climate
    Precipitation is exceptionally low, typically falling below 250 mm annually, and is highly unpredictable, while the lack of cloud cover creates a diurnal…AQA, Pearson Edexcel
    Climate and weather
    A hot, wet equatorial climate with high annual rainfall and consistent high temperatures throughout the year, with no distinct dry season.AQA
    Climate change
    Exacerbated because felled and burned trees release stored carbon dioxide and fewer trees absorb it during photosynthesis.AQA
    Climate change adaptation
    Actions taken to adjust to natural events such as climate change, to reduce potential damage or cope with the consequences.AQA
    Climate change impacts
    The melting of permafrost and alteration of habitats, which threatens species such as polar bears and Arctic foxes.AQA
    Climate change mitigation
    Actions taken to reduce or eliminate the long-term risk and hazards of climate change, usually by reducing greenhouse gas emissions.AQA
    Climate regulation
    Rainforests play a crucial role in the global carbon cycle by absorbing carbon dioxide, thus helping to mitigate climate change.AQA
    Climate trends
    Temperature records show a clear warming trend, with the UK's ten warmest years all occurring since 2002.AQA
    Climate zones
    Regional temperature and precipitation patterns are dictated by the transfer of heat from the equator to the poles.AQA
    Coastal deposition
    Occurs when waves lose energy, dropping their sediment load to form various landforms.AQA
    Coastal erosion
    The wearing away and removal of rock by the sea, driven by wave energy.AQA
    Coastal landscapes
    Distinct landforms and landscapes created by interacting physical processes, constantly modifying the boundary between land and sea over time.AQA
    Coastal management
    Strategies that can be used to protect coastlines from the effects of physical processes.AQA
    Coastal processes
    Dynamic natural forces that shape and modify the coastline over time, operating continuously.AQA
    Coastal realignment
    Another name for managed retreat, in which the sea is allowed to flood a designated area of previously protected land.AQA
    Coastal Recession
    The long-term retreat or moving back of the coastline due to the processes of erosion.Pearson Edexcel
    Cold deserts
    Polar regions with very low precipitation, classified as deserts because of this.AQA
    Commercial Exploitation
    The use of natural resources for financial gain, often on a large scale.Pearson Edexcel
    Commercial farming
    Large-scale clearance of vast tracts for cattle ranching or plantations like palm oil.AQA, Pearson Edexcel
    Commonwealth
    An association of 56 countries promoting democracy, development, and cultural exchange, with which the UK retains political and economic links.AQA
    Commuter settlements
    Also called dormitory towns, these grow when people move to surrounding villages but continue working in the city.AQA
    Conflict management
    Zoning strategies on lakes that separate conflicting recreational activities, such as high-speed powerboats from quiet areas reserved for kayaking.AQA
    Congestion charges
    Financial disincentives that deter drivers and have reduced traffic volumes in the city centre.AQA
    Connectivity
    The way a city is linked to other places via transport and communication networks at local, national, and global scales.Pearson Edexcel
    Conservation
    Water conservation is achieved through dual-flush toilets, rainwater harvesting, and fixing leaks, while energy conservation involves using renewable sources…AQA, Pearson Edexcel
    Conservation groups
    Groups like the WWF that advocate for sustainable practices, monitor ecosystems and pressure governments to protect fragile habitats.AQA
    Conservative margin
    A type of plate margin where plates slide past each other, causing friction to lock them until pressure is suddenly released as a powerful earthquake, with no…AQA
    Constructive margin
    A type of plate margin where plates move apart, allowing magma to rise and form shield volcanoes, while minor earthquakes occur as the crust fractures.AQA
    Constructive Wave
    A low, gently sloping wave with a strong swash and weak backwash that deposits material on a beach.Pearson Edexcel
    Constructive waves
    Waves with a low wave height and long wavelength, a strong swash that deposits sediment and a weak backwash.AQA, Pearson Edexcel
    Consumers
    Organisms that eat producers or other consumers to gain energy.AQA
    Consumption
    The using up of a resource by human activity.Pearson Edexcel
    Continentality
    The effect of distance from the sea on climate; inland areas have greater temperature ranges and lower rainfall.Pearson Edexcel
    Continuous data
    A type of data to analyse when asked to suggest a graph, tracked as continuous change over time and best shown by a line chart.AQA
    Contour interpretation
    A plateau appears as an area with few contour lines surrounded by closely spaced contours indicating steep edges.AQA
    Contour interval
    The difference in value between adjacent lines on an isoline map.AQA
    Contour lines
    Lines on a topographical map that show relief, each representing a specific altitude value above sea level.AQA
    Contour patterns
    Lines that form shapes such as a 'V' pointing towards higher ground, used with map symbols to identify basic landscape features.AQA
    Control group
    A baseline for comparison, such as measuring infiltration rates on an untrampled area to compare against a heavily trampled footpath, isolating the human…AQA
    Conurbation
    A large continuous urban area formed by the merging of several previously separate towns and cities.Pearson Edexcel
    Convection
    The transfer of heat through the movement of a fluid or gas, such as warm air rising.Pearson Edexcel
    Convection currents
    One of the primary driving forces behind plate movement, occurring within the mantle.AQA
    Coordinates
    A pair of values read from atlas maps, with latitude always stated first, followed by longitude.AQA
    Coppicing
    A traditional sustainable management technique where trees are cut to their base to encourage new, multiple shoots to grow.Pearson Edexcel
    Core and Periphery
    The concept that development is uneven.Pearson Edexcel
    Core-Periphery Model
    A model showing how development is uneven within a country, with wealth concentrated in a 'core' region while the 'periphery' remains underdeveloped.Pearson Edexcel
    Coriolis Effect
    Causes the rising air to spin, and is strong enough between 5° and 30° latitude to create the necessary rotation.AQA, Pearson Edexcel
    Corrie
    An armchair-shaped hollow with a steep back wall and rock lip, formed by nivation and rotational slip.AQA
    Counter-urbanisation
    A trend primarily observed in HICs, where some High Income Countries experience it as their rate of urbanisation is very slow.AQA, Pearson Edexcel
    Critical evaluation
    Judging the reliability of a conclusion based on selectively presented statistics, considering what alternative presentation methods might show the data more…AQA
    Cross-sections
    A drawing that plots the height of contour lines along a straight line between two points.AQA
    Cultural context
    The diversity of ethnicities, languages, religions, and global cultural exports like music or film.AQA
    Cultural globalisation
    Exposure to global media and shifting work patterns can erode traditional family structures, alter local diets, and introduce westernised consumer habits.AQA
    Cultural Landscape
    A landscape that has been significantly altered or shaped by human activity over time.Pearson Edexcel
    Cultural mix
    A diverse population brings varied food, festivals, and arts that enrich city life.AQA
    Cumulative frequency
    A running total of frequencies, allowing you to find quartiles.AQA
    Curved line distance
    A distance along a meandering river or winding road, measured by pivoting the straight edge of a piece of paper along the route and marking each twist and…AQA
    Cyclones
    The regional name for tropical storms in the Indian Ocean.AQA

    D

    Dams and reservoirs
    Structures that regulate flow and store water, offering benefits like hydroelectric power and recreation but with high economic costs and large areas of land…AQA
    Data analysis
    Critically analysing results by comparing primary data against the theoretical model to see if it holds true in reality.AQA
    Data dispersion
    Measures of dispersion (range, interquartile range) show data spread.AQA
    Data evaluation
    Recognising the flaws in how information was gathered, allowing geographers to understand the boundaries of their findings and explain why anomalies might…AQA
    Data interpretation
    Interpreting statistical information to identify geographical trends or anomalies and to draw valid conclusions.AQA
    Data layers
    Different types of data layered over a base map to identify patterns, relationships, and trends.AQA
    Data presentation
    Showing data through graphs and charts such as line charts, bar charts, pie charts, pictograms, histograms with equal class intervals, divided bar,…AQA
    Data processing techniques
    Calculating averages, percentages, or statistical tests to make raw data meaningful.AQA
    Data reliability
    Data collection in Low Income Countries can be unreliable, incomplete, or difficult to gather in remote areas, and data can become quickly outdated or be…AQA
    De-industrialisation
    The decline of the traditional industrial base, such as coal mining and steel manufacturing, often due to resource exhaustion or cheaper overseas competition.AQA
    Debt relief
    Cancels historical loans, allowing LICs to spend on development and free up capital for public services.AQA
    Decentralisation
    The movement of population and industry from the urban centre to outlying areas.Pearson Edexcel
    Deciduous
    Trees that shed their leaves annually, usually in autumn, to survive cold and dark winter conditions.Pearson Edexcel
    Decomposers
    Organisms that break down dead organic matter, returning essential nutrients to the soil or water.AQA
    Deforestation
    Felling and burning or leaving trees to rot releases stored carbon back as carbon dioxide and permanently loses future capacity to absorb carbon dioxide…AQA, Pearson Edexcel
    Degree of urbanisation
    The percentage of the total population that currently lives in urban areas.Pearson Edexcel
    Deindustrialisation
    The historical decline of heavy manufacturing industries in the North, which contributed to regional economic disparities.AQA, Pearson Edexcel
    Deindustrialisation and economic shift
    A shift to service and quaternary industries that provides high-tech jobs yet leaves behind those lacking new skills, leading to unemployment in deprived areas.AQA
    Demand-side Management
    Strategies designed to reduce the amount of water being used by consumers and industry.Pearson Edexcel
    Demographic Dividend
    The economic growth potential that can result from shifts in a population's age structure, mainly when the share of the working-age population is larger than…Pearson Edexcel
    Demographic growth
    More people to feed, as the global population has surpassed eight billion, with the fastest growth occurring in LICs and NEEs.AQA
    Dendrochronology
    The scientific method of dating tree rings to analyze past climate conditions.Pearson Edexcel
    Dependency
    When a country relies heavily on foreign aid or loans, hindering its own independent economic growth.Pearson Edexcel
    Deposition
    The primary process by the time the river reaches the lower course, where the valley becomes very wide and flat.AQA
    Deprivation
    The degree to which a person or community lacks the things that are essential for a decent life, including work, money, housing, and services.Pearson Edexcel
    Desalination
    A technological process that removes salt from seawater to produce freshwater, typically using reverse osmosis.AQA, Pearson Edexcel
    Desertification
    The risk of which is reduced by strategies including water and soil management, tree planting and use of appropriate technology.AQA, Pearson Edexcel
    Desire lines
    Straight lines drawn between origins and destinations to show movement, such as commuter routes, without following exact paths.AQA
    Destructive margin
    A type of plate margin where a dense oceanic plate subducts beneath a lighter continental plate, causing friction, severe earthquakes and explosive composite…AQA
    Destructive waves
    Waves with a high wave height and short wavelength, a weak swash and a powerful backwash that erodes sediment and pulls it out to sea.AQA
    Development
    The progress of a country in terms of economic growth, the use of technology, and human welfare.Pearson Edexcel
    Devolution
    The transfer of power and funding from national government to local or regional authorities.Pearson Edexcel
    Dietary transition
    Diets shifting from basic staple carbohydrates to resource-intensive products like meat and dairy as incomes rise.AQA
    Differential erosion
    Erosion that occurs at different rates, forming headlands and bays on discordant coastlines where alternating bands of hard and soft rock lie perpendicular to…AQA, Pearson Edexcel
    Digital Divide
    The gap between demographics and regions that have access to modern information and communications technology, and those that don't.Pearson Edexcel
    Direct employment
    Working in the factory itself, offering regular wages that increase local disposable income.AQA
    Direction
    Determined using the eight points of the compass, always aligning the map's north with true north to describe the spatial relationship between two…AQA
    Discharge
    The volume of water flowing through a river channel at a given point, measured in cubic metres per second (cumecs).Pearson Edexcel
    Discordant Coastline
    A coastline where bands of alternating hard and soft rock run at right angles (perpendicular) to the sea.Pearson Edexcel
    Discordant coastlines
    Coastlines where alternating bands of hard and soft rock meet the sea, so soft rock erodes faster to form bays while hard rock protrudes as headlands.AQA
    Discrete data
    A type of data to analyse when asked to suggest a graph, representing independent categories rather than proportions of a total.AQA
    Dispersion graphs
    Graphs that display the spread of a data set, allowing you to identify the range, median, and any anomalies.AQA
    Distribution
    The geographical spread or location of a resource across the Earth's surface.Pearson Edexcel
    Diverting supplies
    Redirecting water from rivers to areas of need, often increasing storage in natural aquifers or artificial basins.AQA
    Domestic Sector
    Water used in households for drinking, cooking, washing, and sanitation.Pearson Edexcel
    Dot map
    A map that uses identical dots to represent a specific quantity, showing spatial distribution and clustering of features like farms.AQA
    Drip tips
    Leaf features that allow heavy rain to run off quickly, preventing fungal growth.AQA
    Drought
    A prolonged period of abnormally low rainfall leading to a shortage of water.Pearson Edexcel
    Drumlins
    Smooth, egg-shaped hills of glacial till formed when overloaded ice deposits material, with a steep stoss end facing up-valley and a gentle lee slope.AQA
    Dune regeneration
    Restoring sand dunes, which act as natural barriers, by planting marram grass to stabilise the sand and installing fencing to trap sand and restrict…AQA
    Dynamic environments
    Environments continuously shaped by a variety of physical processes, changing over time.AQA

    E

    Earth's internal energy
    These physical processes are driven by geothermal heat and convection currents or slab pull in the mantle.AQA
    Ecological footprint
    The overall goal of these features is to reduce the city's ecological footprint.AQA, Pearson Edexcel
    Economic causes
    Global trade imbalances in which Low Income Countries often export low-value primary products while importing expensive manufactured goods, leading to debt…AQA
    Economic consequences
    Financial effects such as estimated costs exceeding £80 million, local businesses losing trade and agricultural land submerged for months, destroying crops…AQA
    Economic development
    A driver of increasing energy consumption in which industrialisation and improved living standards raise demand for energy to power factories, transport and…AQA
    Economic disruption
    High insurance claims and costly repairs resulting from flooding that damages homes and businesses.AQA
    Economic growth
    What the UK government aims to stimulate by investing heavily in transport infrastructure.AQA
    Economic impacts
    Reduced workforce productivity from waterborne disease, crop failure and restricted industrial output, which together negatively affect a country's overall…AQA
    Economic impacts of hazards
    Risks to property involve the destruction of homes, infrastructure such as roads, and businesses, leading to severe economic losses.AQA
    Economic indicators
    Measures of development based on wealth, such as Gross National Income (GNI) per capita, which ignore social well-being.AQA
    Economic inequality
    Inequalities related to employment and income in cities.AQA
    Economic insecurity
    When the formal job market cannot absorb the workforce, forcing many into the informal economy and leading to high unemployment.AQA
    Economic opportunities
    Benefits such as highly fertile soils from weathered ash supporting lucrative agriculture, geothermal energy as a cheap, renewable power source, and tourism…AQA
    Economic viability
    Whether extraction is worth doing, since remaining reserves are harder and more costly to extract and importing coal became cheaper.AQA
    Economic Water Scarcity
    When water is available in nature, but a lack of money and infrastructure means people cannot access it safely.Pearson Edexcel
    Economic well-being
    Wealth and employment, which energy supports by powering factories, running transport and supporting agriculture to create jobs and generate income.AQA
    Ecosystem
    A community of plants and animals (biotic) interacting with their physical environment (abiotic).Pearson Edexcel
    Ecosystem degradation
    Harm to fragile ecosystems, for example when oil spills introduce pollution risks in cold environments.AQA
    Ecosystem fragility
    The state of being highly fragile and vulnerable to disruption, caused by naturally low biodiversity due to extreme cold, low precipitation and short growing…AQA
    Ecosystem resilience
    The natural ability of ecosystems to recover from small-scale changes over time, though severe impacts may cause permanent damage.AQA
    Ecosystem scales
    Ecosystems exist at a range of scales, from a local scale such as a small pond or a single oak tree to a global scale biome covering vast areas.AQA
    Ecosystem Services
    The benefits that humans obtain from ecosystems (e.g., food, flood regulation, recreation).Pearson Edexcel
    Ecosystem structure
    The components of the rainforest ecosystem, namely climate, water, soils, plants and animals, which interact through complex interdependence.AQA
    Ecotourism
    Responsible travel to natural areas that conserves the environment, sustains the well-being of the local people, and involves interpretation and education.Pearson Edexcel
    Electronic communication
    Links, particularly via submarine internet cables, that integrate the UK into the global digital economy.AQA
    Embankments
    Raised banks that increase the cross-sectional area of the river, protecting adjacent land but able to fail catastrophically if overtopped.AQA
    Emerging Country (NEE)
    A country that has begun to experience high rates of economic growth, usually driven by rapid industrialisation.Pearson Edexcel
    Emerging Economy
    A country that has some characteristics of a developed market, but does not yet meet standards to be a developed economy.Pearson Edexcel
    Employment
    Urban change stimulates this by attracting new businesses, particularly in service and high-tech sectors, replacing declining manufacturing.AQA
    Employment structures
    The balance between the primary, secondary, tertiary and quaternary sectors, shown as the proportion of a country's workforce employed in each.AQA
    Energy
    Renewable sources like solar farms taking advantage of high insolation, and non-renewable extraction like coal.AQA
    Energy conservation
    Reducing the use of fossil fuels and increasing energy efficiency in homes and businesses, for example through insulation, double or triple glazing,…AQA
    Energy deficit
    A region where energy consumption exceeds supply, such as Western Europe or parts of Sub-Saharan Africa.AQA
    Energy Demand
    The total amount of energy required by a country or population.Pearson Edexcel
    Energy development
    An opportunity where some regions use locally mined coal or explore geothermal power.AQA
    Energy Infrastructure
    The physical framework (power stations, grids, pipelines) required for the generation and distribution of energy.Pearson Edexcel
    Energy insecurity
    A situation where a region must rely on imports to meet its needs, making it vulnerable to price fluctuations and political instability in exporting countries.AQA
    Energy Mix
    The combination of different energy sources (renewable and non-renewable) used to meet a country's energy demand.Pearson Edexcel
    Energy Security
    The ability to meet energy demands, which is directly impacted when a country relies heavily on imported fossil fuels.AQA, Pearson Edexcel
    Energy surplus
    A region where energy supply exceeds consumption, such as the Middle East or Russia.AQA
    Enhanced greenhouse effect
    Human factors primarily involve this, driven by burning fossil fuels, deforestation, and agriculture, which release carbon dioxide, methane, and nitrous oxides.AQA, Pearson Edexcel
    Enterprise Zones
    Areas offering tax breaks and superfast broadband to encourage businesses to locate in disadvantaged areas.AQA
    Environmental change
    A change to an ecosystem that can be natural, such as extreme weather events or disease outbreaks, or human-induced.AQA
    Environmental conservation
    Protecting fragile vegetation and wildlife habitats, for example by pitching paths with local stone or reserving quiet areas for wildlife.AQA
    Environmental context
    Knowledge of the country's climate, biomes, and natural hazards, which can both hinder and support economic growth.AQA
    Environmental degradation
    Unregulated industrial expansion often leads to severe air and water pollution, alongside deforestation for infrastructure, and rapid development usually…AQA
    Environmental fragility
    The vulnerability of cold environments, which are highly fragile ecosystems at risk from economic development.AQA
    Environmental impact
    Environmental consequences such as hedgerow removal, reduced biodiversity, habitat destruction and water pollution from agricultural runoff.AQA
    Environmental impacts
    Heavy footfall leads to footpath erosion and habitat disturbance, while vehicles increase air and noise pollution, and littering and the visual intrusion of…AQA
    Environmental policy
    Policies and commitments to reduce greenhouse gas emissions that have accelerated the phase-out of domestic coal extraction.AQA
    Environmental sustainability
    Using practices such as renewable energy, closed-loop water recycling and restoring quarried landscapes so that modern industrial development reduces harm to…AQA
    Erosion
    The wearing away of rock and soil by the river's energy.AQA
    Erratics
    Large boulders transported by ice and deposited in areas of different rock types.AQA
    Estuaries
    Transitional zones where the river meets the sea, and tidal currents slow the river's flow, causing extensive deposition of fine silt and mud.AQA
    European Union (EU)
    A European political and economic union with which the UK retains vital ties through trade agreements.AQA
    Eutrophication
    The process in which fertilisers from agricultural runoff enter watercourses, depleting oxygen and harming aquatic life.AQA, Pearson Edexcel
    Evaluation of methods
    Assessing the reliability and success of the methods used, which cannot be done before the data has been gathered in the field.AQA
    Exclusive Economic Zone (EEZ)
    The area of sea over which a country has special rights regarding the exploration and use of marine resources.Pearson Edexcel
    Extreme climates
    Harsh physical conditions such as extreme cold, strong winds, and limited sunlight.AQA
    Extreme temperatures
    Conditions that are often very high during the day and drop below freezing at night, making physical labour difficult and limiting the hours when construction…AQA
    Extreme weather
    Distinct types of extreme conditions experienced in the UK, such as heavy rainfall, strong winds and gales, extreme cold and heavy snowfall, and heatwaves and…AQA, Pearson Edexcel
    Eye
    The roughly circular centre of a tropical storm, where air descends and conditions are calm and clear with extremely low pressure.AQA
    Eyewall
    A towering ring of cumulonimbus clouds surrounding the eye, where the most intense, destructive winds and torrential rainfall occur.AQA

    F

    Fairtrade
    Guarantees farmers a fair price and a social premium for community projects, protecting them from market fluctuations.AQA
    Famine
    An extreme and widespread scarcity of food leading to starvation and increased mortality rates.AQA
    Farming
    Cultivating crops like wheat or cotton in arid regions, relying heavily on irrigation systems such as the Indira Gandhi Canal.AQA
    Feed-in Tariff
    A policy mechanism designed to accelerate investment in renewable energy technologies by offering long-term contracts to renewable energy producers.Pearson Edexcel
    Feed-in Tariffs
    A policy mechanism designed to accelerate investment in renewable energy technologies by offering long-term contracts to renewable energy producers.Pearson Edexcel
    Fetch
    The distance of open water over which the wind blows.AQA, Pearson Edexcel
    Fieldwork evaluation
    Using results that did not match the theory as an opportunity to evaluate the limitations of the study or the model itself.AQA
    Fieldwork improvement
    Recommending new primary measurements or secondary sources that would make conclusions more robust.AQA
    Fieldwork methodology
    The way information is gathered in the field, whose specific weaknesses can reduce the accuracy or reliability of the data collected.AQA
    Financial Inclusion
    The availability and equality of opportunities to access financial services.Pearson Edexcel
    Fishing
    A major industry, with cold waters like the Barents Sea supporting vast fish stocks such as cod.AQA
    Flashy hydrograph
    A hydrograph with a short lag time and a high, steep peak discharge, indicating rapid surface runoff often caused by impermeable geology, steep relief, or…AQA
    Flood management
    Strategies that can be used to protect river landscapes from the effects of flooding.AQA
    Flood plain
    The wide, flat area of land either side of a river, built up by successive layers of deposited alluvium during floods and widened by meander migration.AQA
    Flood plain zoning
    Restricts high-value land uses, like housing, from being built in flood-prone areas, leaving them for pasture or parks.AQA
    Flood risk
    The chance of flooding that is increased by physical factors such as heavy rainfall, impermeable geology or steep relief, alongside human factors like…AQA
    Flood risk management
    Managing flood risk through methods such as flood warnings and preparation, flood plain zoning, planting trees and river restoration.AQA
    Flooding
    The UK has experienced its wettest winters on record recently, leading to severe flooding events.AQA
    Floodplain
    An extensive feature of the very wide and flat valley in the lower course.AQA
    Floodplain Zoning
    Restricting the type of development allowed on floodplains to reduce the impact of flooding.Pearson Edexcel
    Flow-line maps
    Maps that indicate movement, like migration or trade, where the thickness of the line represents the volume of flow.AQA
    Fluvial landscapes
    One of the landscapes that can be described from large scale maps, featuring meanders, oxbow lakes and floodplains, identifiable by flat land with widely…AQA
    Fluvial processes
    The physical mechanisms by which a river shapes its surrounding landscape, operating continuously as water flows from the source to the mouth.AQA
    Food deficit
    A situation where the demand for food exceeds the available supply, so areas suffer from food insecurity.AQA
    Food Insecurity
    The state of being without reliable access to a sufficient quantity of affordable, nutritious food.Pearson Edexcel
    Food miles
    The distance food travels to reach consumers, which increases when the UK relies on imports for out-of-season food and so raises the carbon footprint.AQA
    Food security
    A situation where people have reliable access to sufficient, affordable, and nutritious food.AQA
    Food surplus
    A situation where food supply exceeds the demand of the population, so areas experience food security because they produce or can afford to import more food…AQA
    Footpath erosion
    The wearing away of soil and rock on paths by the repeated trampling of hikers' boots.Pearson Edexcel
    Foreign Direct Investment (FDI)
    An investment made by a firm or individual in one country into business interests located in another country.Pearson Edexcel
    Fossil fuels
    A non-renewable source of energy consisting of coal, oil and natural gas.AQA, Pearson Edexcel
    Fracking (Hydraulic Fracturing)
    The process of injecting liquid at high pressure into subterranean rocks to force open existing fissures and extract oil or gas.Pearson Edexcel
    Freeze-thaw weathering
    Repeated cycles of freezing and thawing, where water enters cracks, freezes and expands, eventually causing fragments of rock to break off.AQA, Pearson Edexcel
    Frequency
    Describes how often an event occurs within a given time period, such as a flood having a 1-in-50 year return period.AQA

    G

    Gentrification
    The process by which wealthier people move into, renovate, and restore housing and sometimes businesses in inner cities or other deteriorated areas.Pearson Edexcel
    Geo-spatial data
    Information tied to a specific location on the Earth's surface, often using coordinates like latitude and longitude.AQA
    Geographical enquiry
    An investigation that geographers strengthen by proposing additional information to address gaps in their original methodology.AQA
    Geographical enquiry process
    Selecting suitable questions or hypotheses, considering factors such as whether the question is specific and measurable and whether primary data can be…AQA
    Geographical Information System (GIS)
    A computer-based framework used to gather, manage, analyse, and present spatial data.AQA
    Geographical Information Systems
    A digital source that allows multiple data sets to be overlaid.AQA
    Geographical investigations
    A logical process following stages from establishing an enquiry question through planning methodology, collecting and presenting data, analysing results,…AQA
    Geographical location
    Where the city is, described using specific geographical terms, compass directions and reference points, such as the south-east coast of Brazil.AQA
    Geographical models
    Simplified models that set expectations for fieldwork results, which real-world data may deviate from due to local anomalies.AQA
    Geological structure
    The arrangement of rock layers and weaknesses like joints, which controls the shape of coastal forms.AQA
    Geology
    Impermeable rocks like clay prevent infiltration, forcing water overland and increasing the volume reaching the river channel quickly.AQA
    Geopolitical conflict
    Political tension, diplomatic disputes or legal battles over water rights where competing demands for a shared water source exist, such as disputes over river…AQA
    Geopolitics
    The influence of geography, economics, and demography on the politics and foreign policy of a state.Pearson Edexcel
    Geopolitics and conflict
    Tensions that often occur in the Middle East due to its vast oil reserves, affecting global supply.AQA
    Gersmehl Model
    A model showing the cycling of nutrients between three stores: biomass, litter, and soil.Pearson Edexcel
    Gini Coefficient
    A statistical measure of economic inequality in a population, where 0 represents perfect equality and 1 represents absolute inequality.Pearson Edexcel
    Glacial and interglacial episodes
    The alternating cold and warm phases that characterise the Quaternary period.AQA
    Glacial deposition
    When the glacier loses energy and melts, it deposits unsorted material as glacial till, forming distinct depositional landforms such as moraines across the…AQA
    Glacial erosion
    Glaciers wear away bedrock primarily through plucking, where meltwater freezes onto bedrock and rips pieces away as the ice moves, and abrasion, where rocks…AQA
    Glacial landforms
    Features such as ribbon lakes, arêtes and corries that form the rugged terrain of glaciated upland areas and draw visitors for sightseeing.AQA
    Glacial landscapes
    One of the landscapes that can be described from large scale maps, including U-shaped valleys with steep sides and flat bottoms, corries shown by…AQA
    Glacial Period
    A colder period during the Quaternary when ice sheets expand globally (commonly called an ice age).Pearson Edexcel
    Glacial transportation
    Glaciers move via basal slip and internal deformation, transporting immense amounts of rock debris and often bulldozing it forward.AQA
    Glacial trough
    A wide, flat-bottomed valley formed as a glacier moves down a V-shaped river valley, plucking and abrading interlocking spurs.AQA
    Global Atmospheric Circulation
    The process that primarily controls the distribution of biomes by dictating temperature and precipitation.AQA, Pearson Edexcel
    Global climate zones
    High-pressure belts at approximately 30° north and south are characterised by dry, settled conditions.AQA
    Global development gap
    The stark gap created globally because economic development and quality of life vary significantly.AQA
    Global distribution
    Restricted to latitudes between 5° and 30° north and south of the equator, where the Coriolis effect is strong enough and ocean temperatures are sufficiently…AQA
    Global inequalities
    Differences between development categories, with LICs, NEEs and HICs correlating with different stages of the Demographic Transition Model.AQA
    Global inequality
    Stark disparities in wealth and health between countries, with HICs dominating global trade and LICs left with limited economic growth.AQA
    Globalisation
    A cause of economic change in the UK that, alongside de-industrialisation and evolving government policies, has driven the transition from secondary…AQA, Pearson Edexcel
    GNI per head
    A country's total income divided by its population, used as an economic measure of development.AQA
    Goods
    Physical, tangible products obtained from the ecosystem that have economic or subsistence value.Pearson Edexcel
    Government policies
    Play a crucial role, for example the privatisation of state-owned industries in the 1980s led to widespread closures of unprofitable coal mines.AQA
    Gradient
    The steepness of a slope expressed numerically as a ratio, such as 1:20, meaning one unit of vertical rise for every 20 units of horizontal distance.AQA
    Graphical interpretation
    Examining the axes, scales and data selection of a graph, as even neat graphs can be misleading.AQA
    Graphical methods
    Methods including charts and graphs, for example scatter graphs showing relationships between pebble size and distance and pie charts displaying land use…AQA
    Graphical presentation
    Selecting the most suitable graphical technique for the data type, such as a line graph for continuous data or a bar chart for discrete data.AQA
    Graphical representation
    A form of graph suggested as appropriate for the data provided, chosen by linking the graph's specific function to the data's characteristics.AQA
    Graphical skills
    Selecting and constructing appropriate graphs and charts to present data, using appropriate scales.AQA
    Graphical sources
    Sources such as bar charts, line graphs, pie charts and scatter graphs that provide quantitative data revealing trends, patterns and anomalies.AQA
    Green infrastructure
    Parks, green roofs, and urban wetlands provide habitats for wildlife and improve air quality, while also offering recreational areas that enhance the physical…AQA
    Green space
    Deliberately created or maintained natural areas within a city, such as parks, green roofs, tree-lined streets and small community gardens.AQA
    Greenfield Site
    An area of land that has not been developed previously, often agricultural land or countryside.Pearson Edexcel
    Greenfield sites
    Undeveloped land, usually on the rural-urban fringe, which is cheaper to build on but leads to urban sprawl and habitat loss.AQA
    Gross Domestic Product (GDP) per capita
    The total value of goods and services produced by a country in a year, divided by its total population.Pearson Edexcel
    Groundwater management
    Ensuring aquifers are not depleted faster than they recharge, often by monitoring extraction rates and preventing pollution from agriculture or industry.AQA
    Groynes
    Timber or rock barriers built at right angles to the coast to trap sediment moved by longshore drift, creating wider beaches that absorb wave energy.AQA

    H

    Habitat creation
    The process by which managed retreat creates new intertidal habitats, such as salt marshes and mudflats, which act as natural buffers to absorb wave energy.AQA
    Habitat fragmentation
    The process by which habitat loss results in the division of large, continuous habitats into smaller, more isolated remnants.Pearson Edexcel
    Hard engineering
    A category of coastal management strategy that uses artificial structures, such as sea walls to deflect wave energy or groynes to trap sediment and interrupt…AQA, Pearson Edexcel
    Hazard classification
    The grouping of natural hazards by their physical processes, such as tectonic hazards and atmospheric hazards.AQA
    Hazard identification
    Stating the exact hazard, such as slipping on wet rocks or sunburn, rather than a generic risk like getting hurt.AQA
    Hazard impacts
    The effects of weather hazards, including flooding damaging homes and businesses, trees brought down and power supplies disrupted, travel disruption and…AQA
    Hazard mitigation
    Understanding these major risks is crucial for developing effective mitigation strategies to reduce vulnerability in affected communities.AQA
    Hazard risk
    The probability that a natural hazard will cause damage or loss of life.AQA
    Health and disease
    Increased risk of waterborne diseases such as cholera and typhoid as a direct consequence of consuming polluted water.AQA
    Heat transfer
    Large-scale movement of air distributes heat across the Earth by transferring it from the equator to the poles.AQA
    HICs
    High Income Countries, where urbanisation occurred earlier during the Industrial Revolution and the current rate is very slow.AQA
    Historical causes
    Colonialism, where wealth and resources were extracted from colonies to benefit ruling nations, leaving a legacy of poor infrastructure and political…AQA
    Honeypot Site
    A location that attracts a very large number of tourists, often leading to overcrowding and environmental damage.Pearson Edexcel
    Human data
    Data relating to people and their activities, such as pedestrian counts, environmental quality surveys, questionnaire responses or traffic counts.AQA
    Human development
    Relies on a secure supply of food, water and energy to improve quality of life and standard of living.AQA
    Human Development Index (HDI)
    A composite measure used by the United Nations, combining GNI per capita, life expectancy and expected years of schooling to give a holistic view of…AQA, Pearson Edexcel
    Human exploitation
    Activities such as oil extraction, mining and overfishing that further degrade these delicate food webs.AQA
    Human impact
    The disruption of human activity, including transport disruption, health emergencies, droughts reducing agricultural crop yields, and damage to homes and…AQA
    Human impacts of hazards
    Risks to people include injury, death, displacement, and the spread of diseases following events like floods.AQA
    Human intervention
    Actions such as strict government policies that can reduce deforestation rates, as in Brazil during specific policy periods.AQA
    Human landscapes
    The features people have created, including settlement, communication and land-use, which can be inferred by linking map symbols to the underlying physical…AQA
    Human-environment conflict
    The conflict between economic gain and environmental preservation, shown when roads and pipelines disrupt animal migration routes.AQA
    Human-environment interaction
    Human actions such as a lack of river dredging or land-use changes that worsened the event by reducing river capacity and increasing surface runoff.AQA
    Hurricanes
    The regional name for tropical storms in the Atlantic.AQA
    Hydraulic action
    The sheer force of the water traps air in cracks, weakening the banks.AQA, Pearson Edexcel
    Hydraulic power
    Waves crashing against a cliff force air into cracks, and as the wave retreats the air expands explosively, widening the cracks and breaking the rock.AQA
    Hydrograph
    A graph that shows the relationship between precipitation and discharge, with rainfall as a bar chart and discharge as a line graph.AQA
    Hydrological Drought
    Reduced streamflow and groundwater levels due to reduced precipitation.Pearson Edexcel
    Hydrology
    Surface water is rare, mostly appearing in temporary, ephemeral channels following flash floods.AQA
    Hydroponics
    Growing plants in nutrient-rich water rather than soil, which saves water and space.AQA
    Hypothesis
    A testable statement or specific question, such as river discharge increasing with distance downstream, that is measurable and rooted in a recognised…AQA

    I

    Ice cores
    Cores extracted from Antarctica and Greenland that trap ancient air bubbles, allowing researchers to measure historical carbon dioxide levels and estimate…AQA
    Ice distribution
    The maximum extent of ice cover across the UK during the last ice age reached as far south as a line from the Bristol Channel to the Wash.AQA
    Igneous Rock
    Rock formed by the cooling and solidifying of molten magma or lava.Pearson Edexcel
    Immediate responses
    Actions that occur in the hours and days following a tectonic hazard, focusing on saving lives and providing basic needs.AQA
    Impermeable
    A surface or rock type that does not allow water to pass through it.Pearson Edexcel
    Inaccessibility
    A hindrance to development because vast expanses of sand and rugged terrain make building and maintaining transport networks costly and difficult.AQA
    Indirect employment
    Working in services that support the factory or its workers, such as local shops and transport services.AQA
    Industrial development
    The growth of industry, which can harm the physical environment through air and water pollution, soil degradation and habitat destruction during raw material…AQA
    Industrial Sector
    Water used in manufacturing processes, chemical plants, and for cooling in power stations.Pearson Edexcel
    Industrialisation
    The growth of manufacturing and energy consumption as countries develop, which can cause severe pollution and habitat destruction.AQA
    Infant mortality
    Deaths under one year per 1000 live births, used as a social measure of development.AQA
    Infiltration
    The process by which water on the ground surface enters the soil.Pearson Edexcel
    Informal Economy
    Employment outside the official knowledge of the government.Pearson Edexcel
    Informal Settlement
    Areas of housing built on land not owned by the residents, usually without legal permission and lacking basic infrastructure (also known as slums or squatter…Pearson Edexcel
    Informal Settlement (Favela/Slum)
    An area of poor-quality housing, lacking in amenities such as water supply, sewerage and electricity, which often develops illegally in a city.Pearson Edexcel
    Informal settlements
    Rapidly expanding squatter settlements that city authorities struggle to connect to the mains water supply.AQA
    Information technology
    The foundational infrastructure that allows modern finance, research and services to operate globally.AQA
    Infrastructure
    Physical defences such as flood embankments or temporary barriers that defend against rising water.AQA, Pearson Edexcel
    Infrastructure adaptation
    Raising buildings on piles or insulating pipes so that heat does not melt the permafrost, which significantly increases development costs.AQA
    Infrastructure deficit
    When infrastructure fails to keep pace with expanding populations, resulting in inadequate access to clean water and sanitation.AQA
    Infrastructure development
    Requires expensive works such as pipelines or deep boreholes for water and transport networks, whose high cost is linked to the harsh physical conditions of…AQA
    Insolation
    Incoming solar radiation (heat energy from the sun).Pearson Edexcel
    Integrated Transport System
    A transport network where different modes of transport (e.g., buses, trains, trams) are linked together efficiently, often with a single ticketing system.Pearson Edexcel
    Integrated transport systems
    Combined tram, bus, and rail networks improve connectivity, reduce congestion, and support wider economic growth.AQA
    Inter-quartile range
    The difference between the upper and lower quartiles, showing the spread of the middle 50% of data, which ignores extreme anomalies.AQA
    Inter-Tropical Convergence Zone (ITCZ)
    A low-pressure belt near the equator where trade winds meet, characterised by rising air and heavy rain.Pearson Edexcel
    Interdependence
    The tightly linked relationship between living and non-living elements, which is fragile because a slight change in moisture can trigger rapid blooming or…AQA, Pearson Edexcel
    Interglacial Period
    A warmer period between glacials when ice sheets retreat and sea levels rise.Pearson Edexcel
    Intermediate technology
    Simple, sustainable tools suited to local skills that local people can build and maintain, such as solar cookers.AQA
    Intermittency
    The characteristic of certain renewable energy sources (like wind and solar) that do not produce energy continuously.Pearson Edexcel
    International agreements
    Agreements between countries that are vital for preventing economic exploitation, such as the Antarctic Treaty and the 1991 Protocol on Environmental…AQA
    International aid
    The transfer of resources from one country to another to assist with development or provide relief.AQA
    International cooperation
    Global agreements and debt-reduction schemes that encourage countries to protect their valuable rainforest ecosystems for the long term.AQA
    International importance
    The city's role at the global scale, such as hosting global events, attracting international tourism and serving as a major port for global trade.AQA
    Irrigation
    The artificial application of water to land to assist in the production of crops.Pearson Edexcel
    Isoline map
    A map that connects points of equal value, such as contour lines for altitude or isobars for atmospheric pressure.AQA
    Isoline maps
    Maps that display continuous data by connecting points of equal value.AQA
    ITCZ (Inter-Tropical Convergence Zone)
    A low-pressure belt around the equator where the Trade Winds meet and warm air rises.Pearson Edexcel

    J

    Justification
    Explaining how the chosen graph suits the data, such as showing a trend over time, to support the suggestion made.AQA

    K

    Knowledge Economy
    An economy based on specialized knowledge and skill, such as finance, media, and tech.Pearson Edexcel

    L

    Label
    A label simply identifies a feature, such as pointing to a 'plunge pool' on a waterfall diagram or a 'peak' on a line graph.AQA
    Lag Time
    The delay between peak rainfall and peak discharge.AQA, Pearson Edexcel
    Land use
    Urbanisation replaces permeable soil with impermeable surfaces like tarmac and concrete, while deforestation removes trees that intercept rainfall and absorb…AQA
    Land use conflict
    Controversy caused because managed retreat results in the loss of agricultural land or property, requiring compensation for affected landowners.AQA
    Land use interpretation
    Moving beyond merely identifying symbols to explaining what they indicate about how people use the landscape, combining multiple pieces of map evidence.AQA
    Landform creation
    Deposition of sediment when glaciers lose energy creates distinct landforms.AQA
    Latent Heat
    Released when rising air cools and condenses to form towering cumulonimbus clouds, powering the storm.AQA, Pearson Edexcel
    Lateral erosion
    Erosion that, together with deposition, drives the shift from vertical erosion as the river flows downstream, widening and deepening the channel and…AQA, Pearson Edexcel
    Lateral moraine
    A ridge of deposited till that forms along the glacier's edges.AQA
    Latitude
    Lines that run parallel to the Equator, measuring distance north or south from 0° to 90°.AQA
    Latosol
    The specific type of red, iron-rich, but nutrient-poor and acidic soil found in tropical rainforests.Pearson Edexcel
    Leaching
    The process where heavy rainfall dissolves and washes nutrients downward through the soil, out of reach of plant roots.Pearson Edexcel
    Legal land tenure
    Granting legal land rights to residents, which encourages them to invest in improving their own homes.AQA
    Legislation and policy
    Strict laws and monitoring by the Environment Agency that are used to manage water pollution.AQA
    Levées
    Natural embankments along the river banks, built up over time when a flooding river loses energy and drops its heaviest, coarsest material first, closest to…AQA
    Lianas
    Plants that climb tree trunks to reach sunlight in the canopy.AQA
    LIC and NEE development
    A local renewable energy scheme in a Low Income Country or Newly Emerging Economy improves living standards by powering lights for education and machinery for…AQA
    LICs
    Low Income Countries, which are experiencing rapid urbanisation driven by rural-to-urban migration and natural increase.AQA
    Limitations
    Weaknesses such as the subjective framing of a photograph or misleading scales on a graph, which students must recognise when interpreting sources.AQA
    Literacy rates
    The percentage of adults who can read and write, used as a social measure of development.AQA
    Lithology
    Rock type, which determines erosion resistance, with hard rocks like limestone forming steep cliffs and soft rocks like clay creating gently sloping cliffs.AQA
    Local community projects
    Small-scale, community-led schemes such as micro-hydro or biogas digesters, managed by the local community rather than being large-scale national projects.AQA
    Local sourcing
    Buying food produced nearby, such as from farm shops or farmers' markets, which reduces food miles and carbon emissions.AQA
    Logging
    The removal of valuable timber from the forest.AQA
    Long profile
    The changing gradient of the river bed from source to mouth, typically forming a concave shape that starts steep in the upper course and gradually flattens…AQA
    Long-term responses
    Actions that take place in the months and years after the event, aiming to rebuild communities and improve future resilience.AQA
    Long-term versus short-term changes
    Natural causes have been responsible for significant, long-term shifts in the global climate, whereas the rapid global warming observed since the Industrial…AQA
    Longitude
    Lines (meridians) that run from pole to pole, measuring distance east or west of the Prime Meridian from 0° to 180°.AQA
    Longshore Drift
    The primary process of transportation along a coastline, moving sediment in a zig-zag pattern driven by the prevailing wind.AQA, Pearson Edexcel
    Longwave Infrared Radiation
    Heat energy emitted by the Earth's surface back into the atmosphere.Pearson Edexcel
    Low pressure
    Created at the surface when warm, moist air rises rapidly, drawing in more air which also warms and rises.AQA
    Lowland landscapes
    Areas such as the Fens and the London Basin, formed from softer sedimentary rocks.AQA

    M

    Magnitude
    Refers to the size or scale of an event, such as a 7.8 magnitude earthquake on the moment magnitude scale, indicating immense energy release.AQA
    Managed Retreat
    A sustainable strategy where existing coastal defences are deliberately breached or removed, allowing the sea to flood a designated area of previously…AQA, Pearson Edexcel
    Map interpretation
    Combining contour patterns with map symbols to identify basic landscape features and describe their characteristics from map evidence.AQA
    Map scale and distance
    Using the scale line or ratio on a map to measure straight-line and curved distances and convert map measurements to real-world distances.AQA
    Map skills
    Matching the changing gradients on the map to the profile's shape to relate a cross-sectional drawing to map features.AQA
    Marine processes
    Processes such as wave action, erosion, transportation, and deposition that operate at the coastline itself, driven by the energy of waves and tides.AQA
    Mass movement
    The downhill movement of weathered material under the force of gravity, significantly shaping coastal landscapes.AQA, Pearson Edexcel
    Mean
    The sum of all values divided by the total count.AQA
    Meander
    A pronounced bend in a river's middle and lower courses, formed by both erosion and deposition.AQA
    Mechanical weathering
    The physical breakdown of rock without altering its chemical composition, such as freeze-thaw action.AQA
    Megacities
    Their rapid expansion is a key feature of the global pattern of urban change, particularly in Asia and Africa.AQA
    Megacity
    An urban area with a population exceeding 10 million people.AQA, Pearson Edexcel
    Meltwater processes
    Streams flowing away from the glacier snout sort sediment as the water's energy decreases, depositing larger rocks first and carrying finer particles further.AQA
    Metamorphic Rock
    Rock formed when existing rocks are altered by intense heat and pressure without melting.Pearson Edexcel
    Meteorological Drought
    A prolonged period where an area receives significantly less precipitation than the historical average.Pearson Edexcel
    Meteorological records
    Documented anomalies, such as broken historical records, provide robust evidence of a shift towards more extreme weather.AQA
    Microfinance loans
    Small amounts of capital offered to individuals, often women, to start businesses, empowering women and local communities.AQA
    Migration
    Rural-to-urban movement of people, explained by the push-pull theory.AQA
    Milankovitch cycles
    Orbital changes involving variations in Earth's eccentricity (orbit shape), axial tilt, and precession (wobble), which alter the solar energy received and…AQA, Pearson Edexcel
    Mineral extraction
    Mining valuable resources, such as gypsum or limestone, which generates income in a hot desert.AQA
    Mitigation
    Strategies that reduce the impacts of extreme weather, lowering economic loss and protecting lives.AQA, OCR, Pearson Edexcel
    Mitigation and justification
    The financial investment in a management scheme, justified by the impacts of past floods such as homes inundated, damage costs and transport disruption.AQA
    Mitigation strategies
    Practical actions the researcher can take, such as using pedestrian crossings, establishing clear meeting points, and withdrawing from confrontational…AQA
    Monitoring
    Using equipment to detect warning signs, such as seismometers measuring tremors or tiltmeters detecting magma movement.AQA
    Moraine
    Transported material moved along the valley floor, sides, or within the ice itself, shaping the glacial landscape.AQA, Pearson Edexcel
    Multidimensional development
    Single indicators fail to capture the multidimensional nature of development, such as political freedom or environmental sustainability, which even HDI ignores.AQA
    Multidimensional Poverty
    A measure of poverty that considers multiple deprivations at the household level, such as poor health, lack of education, and inadequate living standards.Pearson Edexcel
    Multilateral aid
    Aid given via international organisations like the World Bank.AQA, Pearson Edexcel
    Multiplier Effect
    One economic activity leads to further economic growth, as factories provide direct formal employment and wages that stimulate secondary businesses and…AQA, Pearson Edexcel

    N

    National importance
    The city's role at the scale of the whole country, such as being a major centre for banking, finance and export industries.AQA
    Natural climate forcing
    Natural causes include orbital changes, volcanic activity releasing ash and aerosols that reflect sunlight, and variations in solar output.AQA
    Natural hazard
    A naturally occurring event that has the potential to cause loss of life, injury, property damage, or environmental degradation.AQA
    Natural increase
    Occurs when the birth rate exceeds the death rate, often seen in cities with youthful populations and improving healthcare that lowers mortality.AQA, Pearson Edexcel
    Natural Resource
    Any feature or part of the environment that can be used to meet human needs.Pearson Edexcel
    Natural versus human causes
    Climate change is driven by a combination of natural and human factors, and understanding the distinction between these categories is crucial.AQA
    Net Migration
    The difference between the number of immigrants entering a country and the number of emigrants leaving it over a specific period.Pearson Edexcel
    Net Zero
    Achieving a balance between the carbon emitted into the atmosphere, and the carbon removed from it.Pearson Edexcel
    NIMBY-ism
    Not In My Back Yard; opposition by residents to a proposed development in their local area.Pearson Edexcel
    Non-Governmental Organisation (NGO)
    A non-profit, citizen-based group that functions independently of government (e.g., Oxfam, Red Cross).Pearson Edexcel
    Non-renewable
    Sources of energy that are finite and will eventually deplete, consisting of fossil fuels and nuclear power.AQA
    Non-Renewable Energy
    Energy from finite resources that will eventually run out and cannot be replaced at the speed they are consumed (e.g., coal, oil).Pearson Edexcel
    Non-Renewable Resource
    A resource that exists in a finite amount and cannot be replaced once used (e.g., coal, oil).Pearson Edexcel
    Northern Powerhouse
    A government policy aimed at boosting the economic growth of northern cities by attracting investment and improving transport links to rival London's economy.AQA
    Nuclear power
    A non-renewable source of energy from uranium fission.AQA
    Nutrient cycling
    Most nutrients are stored in the biomass rather than the soil, and a rapid nutrient cycle is maintained by the fast decomposition of leaf litter in the hot,…AQA

    O

    Observer Bias
    When the researcher's own opinions or subjectivity influence the data collected.Pearson Edexcel
    Ocean temperatures
    Sufficiently high between 5° and 30° north and south of the equator, allowing tropical storms to develop over warm oceans above 27°C.AQA
    Opportunity Cost
    The loss of other alternatives when one alternative is chosen.Pearson Edexcel
    Organic farming
    A method that avoids artificial chemicals, using natural fertilisers to maintain soil health.AQA
    Orogeny
    A period of mountain building caused by tectonic plate collisions.Pearson Edexcel
    Outwash
    Sediment deposited by meltwater streams flowing away from the glacier snout, which is sorted, stratified and features rounded rocks due to water attrition.AQA
    Over-abstraction
    When water is being used or extracted from an aquifer or river faster than it can be naturally replenished.Pearson Edexcel
    Overgrazing
    When too many animals graze on a piece of land, removing the vegetation cover and exposing the soil.Pearson Edexcel
    Ox-bow lake
    A horseshoe-shaped lake left when deposition seals off the old meander after the river cuts through the neck.AQA

    P

    Park and ride schemes
    Schemes on the urban fringe that reduce cars entering the city centre.AQA
    Peak Discharge
    The maximum volume of water flowing in a river channel at a given time during a storm event.Pearson Edexcel
    Peat
    A type of soil formed from partially decomposed plant material in waterlogged, acidic conditions.Pearson Edexcel
    Percentage increase or decrease
    Find the absolute difference between the original and new values, divide by the original value, and multiply by 100.AQA
    Percentiles
    Divide a dataset into 100 equal parts, showing a value's relative position.AQA
    Permaculture
    Designs agricultural systems that mimic natural ecosystems.AQA
    Permafrost
    A layer of permanently frozen ground, whose active surface layer thaws in summer, creating waterlogged conditions because it prevents drainage.AQA, Pearson Edexcel
    Phenological Mismatch
    When the timing of interacting seasonal events (like leaf emergence and insect hatching) fall out of sync due to climate change.Pearson Edexcel
    Physical and human causes
    The factors that increase flood risk, including heavy rainfall, impermeable geology or steep relief, and human factors such as urbanisation.AQA
    Physical causes
    Factors such as a landlocked location, which restricts trade, or extreme climates and frequent natural hazards that destroy infrastructure and deter investment.AQA
    Physical data
    Data relating to natural processes, such as river depth, river velocity, pebble size or beach gradient.AQA
    Physical geography
    Features such as climate and relief that heavily influence the natural supply of resources like water.AQA
    Physical geography influences
    Flat, low-lying areas with milder climates attract denser settlement, whereas mountainous regions remain sparsely populated.AQA
    Physical landscapes
    The dramatic scenery of glaciated upland areas, including ribbon lakes, arêtes and corries, which provides a spectacular backdrop for sightseeing and…AQA
    Physical processes
    Earthquakes and volcanic eruptions are the result of processes driven by geothermal heat and convection currents or slab pull in the mantle.AQA
    Physical Water Scarcity
    When there is simply not enough water available to meet demand due to climatic conditions (low rainfall).Pearson Edexcel
    Planning
    Preparing communities by creating exclusion zones, mapping evacuation routes, and conducting emergency drills.AQA
    Plant and animal adaptation
    Features that allow plants and animals to cope with environmental conditions, such as drip tips shedding heavy rain, buttress roots providing stability, and…AQA
    Plucking
    Meltwater at the base of the glacier freezes onto the underlying bedrock, and as the glacier moves downhill under gravity it rips pieces of rock away from the…AQA, Pearson Edexcel
    Polar environments
    Environments with permanent ice cover and extremely low temperatures, often dropping below -50°C, and very low precipitation, making them cold deserts.AQA
    Political context
    The history of governance, colonial past, and current political stability or trading relationships of the country.AQA
    Pollution
    Air and water pollution are environmental issues that cities must manage, with air pollution arising from unregulated factory emissions and older vehicles,…AQA
    Pollution and degradation
    Harm to the physical environment including air and water pollution, soil degradation and habitat destruction, such as heavy metal runoff contaminating local…AQA
    Population density
    The concentration of people in a region, which can create water deficits even where rainfall is moderate.AQA
    Population dynamics
    How birth and death rates change, as illustrated by the Demographic Transition Model, explaining global population patterns.AQA
    Population growth
    A growing population means more individuals require water for domestic use, making it a primary driver for increased water demand in the UK.AQA
    Population movement
    International migration driven by economic and social disparities acting as push and pull factors, as people move from LICs or Newly Emerging Economies to HICs.AQA
    Population pyramids
    Graphs showing demographic structures, with the x-axis displaying population size or percentage and the y-axis showing age cohorts.AQA
    Post-industrial economy
    An economy to which government policies have influenced the transition, marked by a dominance of tertiary and quaternary sectors and altered employment…AQA
    Poverty
    A critical factor in which poorer populations often live in precarious locations, such as steep slopes prone to landslides, and lack resources for resilient…AQA
    Precipitation
    Prolonged or heavy rainfall saturates the soil, increasing surface runoff and so raising flood risk.AQA
    Prediction
    Feeding monitoring data into computer models to forecast the storm's path, enabling authorities to issue timely warnings.AQA
    Preparedness
    Planning that includes educating communities on emergency procedures and preparing community emergency plans.AQA
    Pressure systems
    Rising air creates a global band of low pressure, while sinking air forms high-pressure belts characterised by dry, settled conditions.AQA
    Prevailing wind
    The wind that causes waves to approach the beach at an angle, determining the direction of longshore drift.AQA, Pearson Edexcel
    Primary Data
    Information collected first-hand by the researcher specifically for their current investigation.AQA, Pearson Edexcel
    Primary data collection
    Gathering data within a realistic timeframe, which a specific and measurable question must allow for when selecting a suitable question or hypothesis.AQA
    Primary effects
    The direct, immediate results of the storm's physical forces, such as high winds destroying buildings, storm surges flooding coasts, and torrential rain…AQA
    Primary evidence
    Data you collect firsthand, such as measuring river velocity or conducting pedestrian counts in an urban centre.AQA
    Producers
    Organisms that create their own food using sunlight.AQA
    Proportion
    Expresses a part of a whole, such as stating that 0.25 or 25% of a town's energy comes from renewables.AQA
    Protection
    Designing physical structures to withstand hazards, such as earthquake-resistant buildings with shock absorbers or embankments to divert lava.AQA
    Proxy data
    Indirect evidence of past climates, such as ice cores or ocean sediments, used to reconstruct historical climate change.AQA
    Pull factors
    Positive conditions attracting people to urban areas, such as better employment opportunities, improved healthcare, and access to services.AQA
    Push factors
    Negative conditions forcing people to leave rural areas, such as drought, famine, lack of jobs, or poor education.AQA
    Pyramidal peak
    A sharp peak created when three or more corries erode back-to-back.AQA

    Q

    Qualitative Data
    Data such as opinions in a blog, involving words, descriptions and opinions rather than numbers.AQA, Pearson Edexcel
    Quality of life
    Improved for residents by green spaces offering areas for recreation and relaxation, which improves physical and mental health.AQA, Pearson Edexcel
    Quantitative Data
    Data such as census statistics, involving numbers and statistics rather than words and opinions.AQA, Pearson Edexcel
    Quantitative data analysis
    The use of numerical and statistical information, interpreting, analysing and manipulating raw numbers and processed data to identify patterns and anomalies.AQA
    Quantitative relationships
    The relationships between units, such as converting metres to kilometres, which students must understand to ensure accuracy in data interpretation.AQA
    Quaternary Period
    The geological time period from about 2.6 million years ago to the present, characterised by alternating glacial and interglacial episodes.AQA, OCR, Pearson Edexcel
    Quaternary Sector
    The knowledge-based part of the economy, including information technology, research and development, and financial consultation.Pearson Edexcel

    R

    Rain Shadow
    A dry area on the leeward (downwind) side of a mountainous area, where the air has already lost its moisture.Pearson Edexcel
    Random sampling
    Selects sites or people using a random number generator, giving equal selection chance.AQA
    Rapid Development
    A period of fast economic growth and improving living standards, usually transitioning a country from low-income to middle-income status.Pearson Edexcel
    Rapid Urbanisation
    The fast increase in the proportion of people living in towns and cities, occurring at a pace that outstrips the provision of housing and services.Pearson Edexcel
    Rate of urbanisation
    The speed at which the urban population is growing.Pearson Edexcel
    Ratio
    Compares two distinct quantities, like a 1:4 ratio of independent shops to chain stores on a high street.AQA
    Recreation and entertainment
    Demand for these leads to new sports arenas, shopping centres, and cultural venues.AQA
    Recreation and leisure
    Active outdoor pursuits such as hiking, rock climbing and mountain biking, plus water bodies like Windermere offering sailing, kayaking and boat cruises.AQA
    REDD+
    Reducing Emissions from Deforestation and Forest Degradation; an international scheme that financially rewards developing countries for protecting their…Pearson Edexcel
    Regeneration
    Improving an area that has been experiencing a period of decline through investment and redevelopment.Pearson Edexcel
    Regional disparities
    National figures hide regional disparities, such as the development gap between urban centres and rural peripheries, which even composite measures like HDI do…AQA
    Regional importance
    The city's role at the scale of the local area or state, such as providing employment and services to the surrounding state.AQA
    Regional inequality
    The uneven impact of economic restructuring on regional growth, often exacerbating the North-South divide, with rapid expansion in the South East and London…AQA
    Regional influence
    The country's role within its continent, such as being an economic hub, political leader, or trading partner.AQA
    Regional terminology
    Hurricanes in the Atlantic and Eastern Pacific, typhoons in the Western North Pacific, and cyclones in the Indian Ocean and South Pacific.AQA
    Reliability
    Getting consistent results upon repetition, so that results can be consistently reproduced, and a larger sample size improves it.AQA
    Reliability and accuracy
    Accuracy concerns equipment precision, such as a flow meter versus a float, while reliability concerns consistency, such as repeating measurements.AQA
    Relict landscape
    A landscape created by processes that are no longer operating, such as a UK valley carved by a glacier that has since melted.Pearson Edexcel
    Relict landscapes
    Landscapes that are relict features from the last ice age, rather than the result of glaciation as a current process in the UK.AQA
    Relief
    Steep slopes cause rapid runoff into river channels, reducing lag time and making river levels rise rapidly.AQA
    Relief (Orographic) Rainfall
    Rainfall that occurs when moist air is forced to rise over mountains or hills, causing it to cool, condense, and precipitate.Pearson Edexcel
    Relief and topography
    Major relief features, such as mountains, plateaus, and escarpments, are identified on maps using contour lines and spot heights.AQA
    Renewable
    Sources of energy that can be replenished naturally and will not run out, including biomass, wind, hydro, tidal, geothermal, wave and solar.AQA
    Renewable Energy
    Energy that relies on a renewable resource, such as water, so that a local scheme can provide a sustainable supply of energy.AQA, Pearson Edexcel
    Renewable Resource
    A resource that can be naturally replenished on a human timescale (e.g., solar, wind).Pearson Edexcel
    Representative
    How accurately a sample reflects the entire population or area being studied.Pearson Edexcel
    Reprofiling
    Reshaping the beach, often moving material from the lower beach to the upper beach to create a steeper profile that better dissipates wave energy.AQA
    Resistant
    The ability of a rock to withstand erosion.Pearson Edexcel
    Resource conservation
    Conserving natural resources by recycling waste, which also reduces greenhouse gas emissions and decreases pollution.AQA
    Resource deficit
    A situation where the demand for a resource exceeds the available supply, leading to shortages.AQA
    Resource demand
    The requirement for energy that grows as countries develop economically, populations rise and technology advances.AQA
    Resource depletion
    The physical exhaustion of easily accessible reserves, as seen when the most accessible oil and gas reserves have been depleted.AQA
    Resource extraction
    Economic development such as mineral extraction and oil exploration that threatens pristine cold areas.AQA
    Resource interdependence
    The way the three resources are interconnected, for example energy is needed to pump and treat water.AQA
    Resource management
    Planning for effective use of resources and future water infrastructure, which requires understanding changing patterns of demand.AQA
    Resource security
    A key indicator of a country's overall development level, based on secure supply of food, water and energy.AQA
    Resource surplus
    A situation where the supply of a resource is greater than the demand for it, meaning an area has more than enough to meet its needs.AQA
    Resource-intensive products
    Products such as meat and dairy, where producing one kilogram of beef requires significantly more grain and water than a kilogram of wheat.AQA
    Ridge push
    A mechanism driving plate movement that operates at constructive margins.AQA
    Rising affluence
    People in wealthier nations consume more water domestically through appliances like washing machines, dishwashers, and power showers, as well as eating more…AQA
    Rising population
    The sheer increase in the number of people on the planet means a greater baseline demand for drinking, cooking, and basic sanitation.AQA
    Risk and vulnerability
    What geographers assess, since the severity of a hazard depends on both the physical event and the human context it affects.AQA
    Risk assessment
    A process that identifies the hazard, evaluates the likelihood and severity, and outlines specific precautions to minimise harm.AQA, Pearson Edexcel
    Risk perception
    How people weigh the risks of a tectonic hazard against the benefits of living in an area, with confidence in modern management strategies reducing the…AQA
    River cliff
    A steep feature on the outside bend, formed by lateral erosion that undercuts the bank.AQA
    River restoration
    Returns a modified river to its natural state, for example by removing concrete channels or restoring meanders, which slows the flow.AQA
    River systems
    Major UK rivers, including the River Severn, River Thames, River Trent and River Clyde, which flow from upland sources to coastal mouths.AQA
    Rock armour
    Large boulders placed at the cliff base to absorb and dissipate wave energy as water flows through the gaps between them; cheaper but can be moved by storms.AQA
    Rock falls
    Fragments of rock breaking away from a steep cliff face, usually due to freeze-thaw weathering, and falling freely to the base to form scree.AQA
    Rock flour
    A fine powder produced when abrasion grinds the bedrock, creating smooth, polished rock surfaces.AQA
    Rotational slip
    Circular movement of ice within a corrie hollow, pivoting about a central point, with basal meltwater reducing friction so the glacier slides and erodes deeply.AQA, Pearson Edexcel
    Rural infrastructure
    Improving public transport networks and introducing park-and-ride schemes to mitigate traffic congestion on narrow rural roads.AQA
    Rural-to-urban migration
    Movement from the countryside to cities, driven by push factors like agricultural decline and pull factors like employment.AQA
    Rural-urban fringe
    The transition zone where city meets countryside, a mixed-use zone containing golf courses, retail parks, and housing alongside farmland.AQA
    Rural-Urban Migration
    The movement of people from the countryside to towns and cities.Pearson Edexcel

    S

    Saltation
    The bouncing of smaller particles, like pebbles and gravel, along the riverbed in a leap-frog motion.AQA
    Sanitation systems
    Systems for the safe disposal and treatment of human urine and faeces, which are often inadequate in informal settlements.AQA
    Scale
    Converting map distances to real-world distances using ratios, for example a 1:50,000 scale means 1 cm on the map is 0.5 km in reality.AQA
    Scattergraphs
    Graphs that plot two variables to identify relationships.AQA
    Science parks
    Places that focus on research and development, often in partnership with universities, for high-tech research.AQA
    Scree
    Jagged rock fragments that accumulate at the base of slopes and provide the abrasive tools glaciers use to erode the landscape.AQA
    Sea walls
    Concrete barriers built parallel to the shore that reflect wave energy back out to sea, offering strong protection at a high financial cost.AQA
    Seasonal food consumption
    Eating food that reduces the energy needed for artificial heating or international transport.AQA
    Seasonal variations
    The difference between winter hazards, such as extreme cold and heavy snowfall, and summer hazards, such as heatwaves and droughts caused by prolonged high…AQA
    Secondary Data
    Information that has already been collected by someone else for another purpose but is used to support the current study.AQA, Pearson Edexcel
    Secondary effects
    Subsequent impacts that happen later as a consequence of the primary effects, such as tsunamis, fires, landslides and disease outbreaks.AQA
    Secondary evidence
    Data collected by others used to support your investigation, such as historical maps, census data, or Environment Agency flood risk maps.AQA
    Sediment deposition
    A selective process in which the heaviest material such as boulders is deposited first, while finer sediments like silt are carried further and deposited last.AQA
    Sedimentary Rock
    Rock formed from the accumulation and compaction of sediment (sand, mud, shells) over millions of years.Pearson Edexcel
    Seismic activity
    Frequent earthquake activity, which occurs at all types of plate margins due to the build-up and sudden release of friction.AQA
    Self-help schemes
    Schemes implemented with the role of non-governmental organisations and local communities, relying on self-help from residents.AQA
    Services
    The benefits provided by the ecosystem, such as climate regulation, water purification, and supporting biodiversity.Pearson Edexcel
    Site
    The actual physical land on which a settlement is built, including its topography, water sources, and geology.Pearson Edexcel
    Site and Service Scheme
    A bottom-up approach where the government provides a plot of land with basic services (water, electricity), and residents build their own homes.Pearson Edexcel
    Site and service schemes
    A method where authorities provide land with basic infrastructure like water and electricity, allowing residents to build their own homes.AQA
    Site and Situation
    Site is the actual land a settlement is built on; Situation is the location of a settlement in relation to its surrounding features.Pearson Edexcel
    Site selection
    Choosing the right location involves ensuring the site allows you to answer your enquiry question safely and accessibly.AQA
    Situation
    The location of a settlement in relation to its surrounding environment, including other settlements, transport routes, and physical features.Pearson Edexcel
    Slab pull
    A mechanism driving plate movement that operates at destructive margins.AQA
    Sliding
    Rapid movement of material down a straight slip plane, often triggered by heavy rainfall lubricating the rock layers.AQA
    Slip-off slope
    A gently sloping feature on the inside bend, created by deposition where the flow is slower.AQA
    Slum upgrading
    A strategy that improves existing conditions by paving roads, installing sanitation, and granting legal land rights.AQA
    Slumping
    Downward movement of material along a curved slip plane, creating a terraced appearance on cliffs, typical in softer rocks like clay.AQA
    Social and economic impacts
    The effects of past floods, such as the number of homes inundated, the financial cost of the damage, and the disruption to transport.AQA
    Social and economic inequality
    A widening gap arising from urban change, alongside challenges such as housing shortages.AQA
    Social attachment
    Strong family ties and cultural connections that lead people to remain in tectonically active areas.AQA
    Social changes
    Changes such as improved contraception access and women's education that cause birth rates to decline in Stage 3.AQA
    Social context
    The population dynamics, education, and health of the country.AQA
    Social disruption
    Effects on people such as houses being flooded, farms evacuated, distress and daily life disrupted as villages were cut off.AQA
    Social impacts
    The influx of people can sustain local services like buses and shops, but it also causes severe traffic congestion, overcrowding, and drives up housing prices…AQA
    Social indicators
    Measures of well-being such as life expectancy and expected years of schooling, included alongside economic wealth in the Human Development Index.AQA
    Social inequality
    Rapid rural-urban migration can create severe urban inequality and slum settlements, and rapid growth often widens the wealth gap and creates urban poverty.AQA
    Social unrest
    Includes protests and riots over food availability and costs, triggered by desperation and economic strain.AQA
    Social vulnerability
    How vulnerable UK communities are to extreme weather, which understanding these diverse impacts is crucial for evaluating.AQA
    Social well-being
    The health, happiness and education of a population, which access to nutritious food and clean water helps to support.AQA
    Socio-economic impacts
    Human impacts involve reduced crop yields, loss of habitable land, and the spread of tropical diseases.AQA
    Soft engineering
    Works with natural processes and may include afforestation in the upper catchment to increase interception, or floodplain zoning to restrict development near…AQA, Pearson Edexcel
    Soil and vegetation
    Soils are poorly developed due to sparse vegetation and slow decomposition in freezing temperatures.AQA
    Soil characteristics
    Latosols are surprisingly infertile and acidic, as heavy rainfall causes rapid leaching of nutrients.AQA
    Soil erosion
    Occurs when the protective canopy is removed, so heavy rainfall strikes exposed nutrient-poor latosol soils and washes them away.AQA
    Soils
    Generally shallow, coarse, and rocky or sandy, draining rapidly and containing very little organic matter due to sparse plant life.AQA
    Solar variations
    Solar output fluctuates in cycles, often tracked by sunspot activity, with more sunspots indicating higher solar energy emission and fewer sunspots leading to…AQA
    Solution
    The transport of dissolved minerals, such as calcium carbonate from limestone, invisibly within the water regardless of the river's velocity.AQA
    Source evaluation
    Checking a source for bias, reliability and currency, as written opinions may be subjective and digital data can become outdated or be manipulated.AQA
    Spatial data
    Data suited for maps, as distinguished from numerical data suited for graphs.AQA
    Spatial description
    Using scale to measure the length or width of a feature and noting its orientation using compass directions.AQA
    Spatial distribution
    The pattern of where large-scale natural global ecosystems are found, controlled by global atmospheric circulation.AQA
    Spatial imbalance
    A mismatch between areas of high rainfall and areas of high population density, with high demand in the drier South East and high supply in the wetter North…AQA
    Spatial patterns
    Patterns in population distribution, such as clustering near water sources or avoiding high relief areas, looked for on maps.AQA
    Spatial relationships
    The links between physical and human features, such as settlement restricted to valley floors by steep relief and dense drainage networks.AQA
    Spatial Scale
    The different levels at which geographical phenomena operate, from local to global.Pearson Edexcel
    Spatial variations
    Differences in deforestation rates between different global regions, with some countries reducing rates while others increase them.AQA
    Species survival
    Ensuring survival despite the harsh physical conditions, through physical and behavioural adaptations.AQA
    Spiral rainbands
    Bands that radiate outwards from the eyewall, bringing heavy rain and strong, gusty winds that gradually decrease in intensity towards the storm's outer edges.AQA
    Spit
    A long, narrow ridge of sand or shingle extending out from the coast into the sea, formed by longshore drift.Pearson Edexcel
    Spot heights
    Exact elevations marked on the map, often alongside a black dot, providing precise altitude data for specific locations.AQA
    Stack
    An isolated pillar of rock created when the roof of an arch collapses due to sub-aerial weathering and a lack of basal support.AQA
    Stakeholder
    An individual, group, or organisation with an interest in, or affected by, a particular decision or project.Pearson Edexcel
    Standard of living
    The material wealth of a population, which is distinct from broader well-being factors.AQA, Pearson Edexcel
    Statistical manipulation
    Selective presentation of data, such as cherry-picking it to support a specific argument and hiding the full geographical picture.AQA
    Statistical measures
    Measures of central tendency (mean, median, mode) and dispersion (range) used to summarise data sets.AQA
    Storm formation
    Tropical storms develop in areas of intense low pressure corresponding to the rising limbs of the Hadley cells, where warm, moist air rises rapidly.AQA
    Storm Surge
    A rapid rise in sea level caused by the low pressure of the storm and strong winds pushing water onshore.Pearson Edexcel
    Straight-line distance
    A distance between two points measured with a ruler and converted using the map's scale bar.AQA
    Stratification
    The arrangement of the rainforest vegetation into distinct vertical layers (Emergent, Canopy, Understory, Forest Floor).Pearson Edexcel
    Stratified sampling
    Divides the population into subgroups and samples proportionally, like ensuring a survey reflects a town's age demographics.AQA
    Striations
    Deep scratches left in the bedrock by the rocks embedded in the glacier scraping and scouring it during abrasion.AQA
    Sub-aerial processes
    Processes including weathering and mass movement that operate on the cliff face above the high-water mark, weakening the rock and causing it to fall or slide…AQA
    Subduction
    The process at a destructive margin where a dense oceanic plate moves beneath a lighter continental plate, with friction causing severe earthquakes and the…AQA
    Subdued hydrograph
    A hydrograph with a longer lag time and a lower peak, reflecting slower water transfer through infiltration and throughflow, typical of forested areas or…AQA
    Subsistence farming
    Locals clear small areas of forest to grow food for personal survival.AQA, Pearson Edexcel
    Suburbanisation
    The outward growth of towns and cities to engulf surrounding villages and rural areas.Pearson Edexcel
    SUDS (Sustainable Urban Drainage Systems)
    Systems designed to efficiently manage the drainage of surface water in the urban environment, mimicking natural drainage.Pearson Edexcel
    Sunspots
    Dark patches on the Sun's surface that indicate increased solar activity and energy output.Pearson Edexcel
    Supply-side Management
    Strategies designed to increase the amount of water available for use.Pearson Edexcel
    Surface Runoff
    Water that flows over the surface of the land when the ground is saturated or impermeable.Pearson Edexcel
    Surface water runoff
    Runoff managed by urban greening to lower flood risks.AQA
    Suspension
    The carrying of fine, light material such as silt and clay within the water column, often giving rivers a muddy appearance.AQA
    Sustainability
    A sustainable supply of energy has low environmental impact and is managed by the local community, protecting local forests and improving indoor air quality.AQA
    Sustainable design
    Designing homes, workplaces and transport for sustainability and demand reduction.AQA
    Sustainable development
    Using resources without compromising future generations, so that strategies manage the rainforest sustainably.AQA
    Sustainable Energy Management
    Meeting the energy needs of the present without compromising the ability of future generations to meet their own needs.Pearson Edexcel
    Sustainable Management
    Strategies implemented by city authorities to manage and mitigate environmental issues include recycling schemes, energy-from-waste plants, stricter emissions…AQA, Pearson Edexcel
    Sustainable tourism
    Management that aims for sustainability, balancing economic income with environmental protection rather than stopping tourism entirely.AQA
    Sustainable urban living
    Making urban living more sustainable, with water and energy conservation as essential strategies that reduce the ecological footprint of cities and ensure…AQA, Pearson Edexcel
    Swash
    The movement that carries sediment up the beach at the same angle at which waves approach the beach.AQA, Pearson Edexcel
    Systematic sampling
    Collects data at regular intervals, such as measuring river depth every two metres or surveying every tenth person.AQA, Pearson Edexcel

    T

    Technological advancement
    A driver of increasing energy consumption in which a proliferation of electronic devices and energy-intensive systems raises per capita energy demand.AQA
    Technological efficiency
    Using technology to increase efficiency in the use of fossil fuels.AQA
    Technological mitigation
    Use of technology to reduce the damage caused by economic development in cold environments, such as raising pipelines on insulated supports to prevent…AQA
    Tectonic hazard
    An event including earthquakes and volcanic eruptions that produces both primary and secondary effects.AQA
    Tectonic hazards
    Earthquakes and volcanic eruptions are natural hazards driven by immense physical processes deep within the Earth.AQA
    Tectonic plates
    Massive, irregularly shaped slabs of solid rock that make up the Earth's lithosphere and float on the semi-molten asthenosphere.AQA
    Temperate Maritime
    A climate characterized by moderate temperatures (temperate) and heavy influence from the ocean (maritime), resulting in mild winters, cool summers, and…Pearson Edexcel
    Temporal trends
    Changes in deforestation rates over time, which fluctuate rather than uniformly increasing or decreasing.AQA
    Terminal Groyne Syndrome
    The accelerated erosion experienced on the downdrift side of the last groyne in a series, caused by sediment starvation.Pearson Edexcel
    Terminal moraine
    A ridge of deposited till that marks the maximum advance of the glacier.AQA
    The enhanced greenhouse effect
    Human causes are linked to this effect, driven by the combustion of fossil fuels, deforestation, and agricultural practices.AQA
    The multiplier effect
    The process by which manufacturing stimulates economic development, creating indirect jobs in supply industries and services, boosting retail as workers spend…AQA
    Theory application
    Basing every fieldwork enquiry on an established geographical theory or concept that provides a framework for the investigation.AQA
    Thermal Capacity
    The ability of a substance to store heat.Pearson Edexcel
    Thermal Expansion
    The tendency of matter to expand in volume in response to an increase in temperature.OCR, Pearson Edexcel
    Thermoelectric Power
    Electricity generation that uses heat to produce steam, requiring massive amounts of water for cooling.Pearson Edexcel
    Thermohaline Circulation
    Deep-ocean currents driven by differences in water density, which is controlled by temperature and salinity.Pearson Edexcel
    Tied aid
    Aid with restrictive conditions that benefit the donor more than the receiver, forcing the receiving country to buy goods from the donor.AQA
    Till
    Sediment deposited directly by the melting ice, consisting of unsorted, unstratified angular rock fragments of varying sizes because the ice drops everything…AQA, Pearson Edexcel
    Till (Boulder Clay)
    An unsorted, unstratified mixture of sand, clay, and boulders deposited directly by a melting glacier.Pearson Edexcel
    Timescales of climate change
    Natural factors operate on different timescales: volcanic changes are short-term, solar variations are medium-term, and orbital changes are long-term.AQA
    Top-Down Approach
    Large-scale development projects planned, funded, and managed by governments or international organisations.Pearson Edexcel
    Top-down development
    Large-scale, expensive projects driven by national governments or international organisations, often with little consultation with local people.Pearson Edexcel
    Top-Down Strategy
    Large-scale management initiatives led by governments or large organisations.Pearson Edexcel
    Tourism
    A rapidly growing sector drawn to extreme environments for unique wildlife and natural phenomena, creating vital employment in hospitality and transport.AQA
    Tourism and recreation
    Human activity inferred by locating specific Ordnance Survey symbols such as camp sites, viewpoints, parking areas, information centres and heritage sites.AQA
    Traction
    The rolling of large rocks and boulders along the riverbed, requiring the highest energy, typically during floods.AQA
    Transnational Corporation (TNC)
    A large company that operates in several countries, usually with its headquarters in an HIC and production in LICs or NEEs.Pearson Edexcel
    Transpiration
    The process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the…Pearson Edexcel
    Transport
    Links including major international hubs like Heathrow Airport, facilitating global movement.AQA
    Transport infrastructure
    Road and rail improvements and new developments, plus port and airport capacity, in which the UK government invests heavily.AQA
    Transport strategies
    Strategies including integrated public transport systems, park and ride schemes, and dedicated cycle lanes.AQA
    Transportation
    The movement of eroded material downstream.AQA
    Tree planting
    Provides shade, reduces wind erosion, and binds the soil with roots while adding nutrients through leaf fall.AQA
    Tropical Cyclone
    A large, rotating storm system characterized by a low-pressure center, strong winds, and heavy rain, forming over warm tropical waters.Pearson Edexcel
    Tropical storms
    Powerful weather systems, known regionally as hurricanes, cyclones and typhoons, that develop as a result of particular physical conditions.AQA
    Truncated Spur
    A blunt, steep cliff face on the side of a glacial trough, formed when a glacier cuts straight through interlocking river spurs.Pearson Edexcel
    Tundra environments
    Environments with slightly milder climates where brief summers allow the active layer above the permafrost to thaw, supporting low-growing vegetation like…AQA
    Two-Speed Economy
    The concept that the UK economy is divided into two distinct tiers: the rapidly growing, prosperous South East and the slower-growing regions like the North.Pearson Edexcel
    Typhoons
    The regional name for tropical storms in the Pacific.AQA

    U

    UK physical landscapes
    The distribution of these is explained by the boundary of the ice sheet, with glacial landforms found in northern and western uplands but absent from southern…AQA
    Undernutrition
    Occurs when diet does not provide enough calories or nutrients, affecting health and development.AQA
    Unit conversion
    Changing a measurement from one unit to another, such as millimetres to centimetres or metres to kilometres, ensuring accuracy in data interpretation.AQA
    Upland landscapes
    Areas such as the Scottish Highlands, the Pennines, the Lake District and Snowdonia, typically formed from harder, more resistant igneous and metamorphic rocks.AQA
    Urban biodiversity
    Enhanced by green spaces providing habitats for wildlife.AQA
    Urban change and regeneration
    Changes in cities in the UK that lead to a variety of social, economic and environmental opportunities and challenges.AQA
    Urban deprivation
    A standard of living below that of the majority in a society, often concentrated in specific city areas.AQA
    Urban dereliction
    The abandonment and decay of buildings and land in urban areas, often due to deindustrialisation, which creates visual pollution and attracts crime.AQA
    Urban farming initiatives
    Schemes such as rooftop gardens that reduce food miles and provide local produce.AQA
    Urban greening
    An environmental strategy aimed at increasing the proportion of green spaces within a city, involving public parks, street trees, green roofs and preserved…AQA
    Urban Growth
    The increase in the total population size of an urban area.Pearson Edexcel
    Urban heat island effect
    A problem reduced by green spaces providing shade, alongside absorbing carbon dioxide as 'green lungs'.AQA
    Urban Inequality
    Differences in quality of life, wealth, and access to services between different areas within the same city.Pearson Edexcel
    Urban infrastructure
    Poor infrastructure contributes to traffic congestion, and managing environmental issues involves strategies such as building sewage treatment plants and…AQA
    Urban sprawl
    The outward expansion of built-up areas into the rural-urban fringe, the transition zone where city meets countryside.AQA
    Urban sustainability
    Running a city to meet current needs without compromising future generations.AQA
    Urban transport strategies
    Methods used to reduce traffic congestion, encouraging public transport and discouraging private car reliance.AQA
    Urban-Rural Fringe
    The transition zone at the edge of a city where urban land uses mix with agricultural and rural land uses.Pearson Edexcel
    Urbanisation
    A factor that increases risk because densely populated cities concentrate people and infrastructure, amplifying exposure to earthquakes.AQA, Pearson Edexcel

    V

    Vegetation structure
    The vegetation is highly stratified into distinct layers: the emergent layer, canopy, under canopy, and shrub layer.AQA
    Vertical erosion
    Erosion that dominates in the upper course, where the channel is narrow and shallow within a steep V-shaped valley.AQA, Pearson Edexcel
    Virtual Water
    The volume of fresh water used to produce a product, measured at the place where the product was actually produced.Pearson Edexcel
    Visual intrusion
    When a man-made structure negatively impacts the natural beauty of a landscape.Pearson Edexcel
    Visual methods
    Methods such as annotated field sketches and photographs that capture qualitative observations like coastal erosion features.AQA
    Visual sources
    Sources such as photographs, satellite images and sketches that offer qualitative insights into landscapes and environmental changes.AQA
    Volcanic cooling
    Volcanic activity ejects ash and sulfur dioxide into the stratosphere, and these aerosols reflect incoming solar radiation back into space, causing a…AQA
    Volcanism
    Volcanic eruptions, which are primarily found at constructive and destructive margins where magma reaches the surface.AQA
    Vulnerability
    The susceptibility of a population to the damaging effects of a hazard.Pearson Edexcel
    Vulnerability and poverty
    Lacking the financial means to relocate, which traps many people in high-risk areas.AQA
    Vulnerability and risk
    The severity of risk depends on the vulnerability and capacity of the population to cope.AQA

    W

    Waste disposal
    A major environmental issue as urban populations grow, requiring sustainable solutions like recycling and energy recovery rather than relying on unsustainable…AQA
    Waste management
    Effective management that is vital as urban populations grow and waste generation increases, reducing the volume of waste sent to landfill sites.AQA
    Waste recycling
    Processing used materials into new products, such as separating paper, glass, plastics and metals at the household level for kerbside collection.AQA
    Water and soil management
    Techniques such as building stone lines (bunds) along contours, which trap water and prevent topsoil from washing away.AQA
    Water conservation
    Reducing demand and managing supply efficiently, for example through dual-flush toilets, rainwater harvesting for gardens and water meters to encourage…AQA
    Water deficit
    A condition where rainfall is suppressed by high-pressure systems or demand outpaces supply, typically around 30 degrees north and south of the equator.AQA, Pearson Edexcel
    Water insecurity
    A situation in which demand exceeds supply, so clean water is scarce and people often rely on polluted sources.AQA, Pearson Edexcel
    Water recycling
    Treating wastewater so it can be reused for industrial processes or agriculture, reducing the demand for fresh water.AQA
    Water Scarcity
    A severe lack of water, defined as annual supplies dropping below 1,000m³ per person per year.Pearson Edexcel
    Water security
    Having a reliable, accessible, and affordable supply of clean water to meet the needs of a population and economy.AQA
    Water Stress
    The demand for water exceeding the available amount during a certain period, which can be caused by over-extraction as well as low rainfall.AQA, Pearson Edexcel
    Water supply
    A critical challenge because low and unreliable rainfall means water must be carefully managed, often requiring expensive infrastructure like pipelines or…AQA
    Water surplus
    A condition where precipitation exceeds evaporation, generally found near the equator and in high latitudes.AQA, Pearson Edexcel
    Water transfer
    Moving water through canals or pipes from regions with a water surplus to those with a water deficit.AQA
    Water Transfer Scheme
    Large-scale engineering projects that move water from areas of surplus to areas of deficit via pipes and canals.Pearson Edexcel
    Water treatment
    The use of filtration and chemical purification in plants to ensure water is safe for consumption.AQA
    Wave energy
    Reduced in sheltered areas such as bays by headlands, and by friction with the seabed in shallow water.AQA
    Wave formation
    Waves are generated by wind blowing over the sea surface, and their size depends on wind speed, duration and fetch.AQA
    Wave-cut notch
    A notch formed at the base of a cliff by wave action undercutting it, eventually leading to cliff collapse.AQA
    Wave-cut platform
    A rocky, gently sloping platform left behind by the continuous retreat of a cliff, typically exposed at low tide.AQA
    Wealth inequality
    Averages like GNI per head mask extreme wealth inequalities within a population, as a country might have a high GNI due to a few extremely wealthy individuals…AQA
    Weather hazards
    Tropical storms, known regionally as hurricanes, cyclones and typhoons, are intense low-pressure systems developing over warm oceans above 27°C.AQA
    Weathering
    The breakdown of rock in situ, in its original place, by the action of the weather, plants, and animals.AQA, Pearson Edexcel
    Weathering processes
    Break down exposed rock above the glacier, particularly through freeze-thaw action, which provides the angular rock fragments enabling erosion.AQA
    Wind patterns
    Surface winds blow from high-pressure areas towards low-pressure zones to balance the atmosphere, and the Earth's rotation deflects these winds due to the…AQA
    Wind Shear
    A change in wind speed or direction with altitude.Pearson Edexcel

    X

    Xerophyte
    A plant adapted to survive in an environment with very little liquid water, such as a desert.Pearson Edexcel

    Other terms

    'Grey' water
    Gently used water from sinks, showers, and washing machines (excluding toilet waste) that is collected and reused for purposes like flushing toilets or…AQA
    90th percentile
    Means 90% of the data falls below this value.AQA

    Where these terms come from

    Each definition is one we publish on a Geography GCSE topic page or study guide. Open a term to see how each exam board words it and which topic it belongs to. For the full course, go to Geography revision or the glossary for every subject.

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