Geography GCSE

Geography GCSE glossary

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

A

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: A type of glacial erosion where rocks and stones frozen into the base of the glacier act like sandpaper, grinding away the bedrock.Pearson Edexcel
Accuracy: How close a measured value is to the true or actual value.AQA
Acidification: The process of soil or water becoming more acidic.Pearson Edexcel
Adaptation: Action taken to adjust to natural events such as climate change, to reduce potential damage, limit the impacts, take advantage of opportunities, or cope with…AQA, 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
Afforestation: The planting of trees in an area that was not previously forested.Pearson Edexcel
Agribusiness: Large-scale, capital-intensive commercial farming focused on maximizing yield and profit through technology.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
Alluvium: Fine, fertile soil (silt and clay) deposited by a river during a flood.Pearson Edexcel
Altitudinal Zonation: The change in ecosystems and biomes at different elevations on a mountain due to decreasing temperatures.Pearson Edexcel
Anomaly: A data point or observation that deviates significantly from the general trend or pattern.AQA
Appropriate technology: Technology that is suited to the needs, skills, knowledge and wealth of local people in the environment in which they live.Pearson Edexcel
Aquifer: An underground layer of water-bearing permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt).Pearson Edexcel

B

Backwash: The backward movement of water down a beach under the force of gravity.Pearson Edexcel
Bankfull Discharge: The maximum amount of water a river channel can hold before it overflows its banks and floods.Pearson Edexcel
Bilateral aid: Aid given directly from one country's government to another country's government.Pearson Edexcel
Biodiversity: The variety of flora and fauna within a biome; critical for ecosystem resilience.AQA, Pearson Edexcel
Biomass: Renewable organic materials, such as wood, agricultural crops or wastes, used as a source of fuel.Pearson Edexcel
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
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

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 Sink: A natural environment (like a forest or the ocean) that absorbs and stores more carbon dioxide from the atmosphere than it releases.Pearson Edexcel
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
Channel Straightening: Removing meanders from a river to make it straighter, allowing water to flow faster.Pearson Edexcel
Channelisation: The artificial straightening or altering of a river channel by humans.Pearson Edexcel
Climate: The long-term pattern of weather conditions in a specific area, usually measured over a period of at least 30 years.Pearson Edexcel
Coastal Recession: The long-term retreat or moving back of the coastline due to the processes of erosion.Pearson Edexcel
Commercial Farming: Farming to sell produce for a profit, often on a large scale (e.g., cattle ranching or soya plantations).Pearson Edexcel
Connectivity: The way a city is linked to other places via transport and communication networks at local, national, and global scales.Pearson Edexcel
Conservation: The protection, preservation, and careful management of the natural environment and resources.Pearson Edexcel
Constructive Wave: A low, gently sloping wave with a strong swash and weak backwash that deposits material on a beach.Pearson Edexcel
Constructive Waves: Low-energy waves with a strong swash and weak backwash that deposit material, building up beaches.Pearson Edexcel
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
Conurbation: A large continuous urban area formed by the merging of several previously separate towns and cities.Pearson Edexcel
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: The deflection of moving air caused by the Earth's rotation, which gives tropical cyclones their characteristic spin.AQA, Pearson Edexcel
Counter-urbanisation: The movement of people out of cities into rural areas and smaller towns.Pearson Edexcel
Cultural Landscape: A landscape that has been significantly altered or shaped by human activity over time.Pearson Edexcel

D

Data Collection and Sampling Strategies: The application of random, systematic, and stratified sampling to ensure data representativeness and minimize investigator bias in fieldwork and secondary…AQA
Data Construction and Accuracy: The technical proficiency required to select appropriate scales, plot variables accurately, and provide comprehensive annotations (titles, keys, units) to…AQA
Data Layering and Integration: The synthesis of disparate datasets, such as socio-economic census data and environmental flood risk zones, within a GIS framework to identify spatial…AQA
Data Reliability and Validity: The critical assessment of sampling strategies—including random, systematic, and stratified approaches—and their impact on the accuracy, representativeness,…AQA
Data Triangulation: The methodological process of using multiple data sources or methods to cross-verify findings, thereby enhancing the reliability and validity of geographical…AQA
Data Visualization and Cartographic Representation: The use of complex graphical techniques, including scatter graphs, proportional symbols, and chloropleth maps, to identify spatial patterns and anomalies.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
Degree of urbanisation: The percentage of the total population that currently lives in urban areas.Pearson Edexcel
Deindustrialisation: The decline of a country's traditional manufacturing industry due to exhaustion of raw materials, loss of markets, and competition from NEEs.AQA, Pearson Edexcel
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
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
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: The industrial process of removing salt and dissolved minerals from seawater to produce fresh water.Pearson Edexcel
Desertification: The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.Pearson Edexcel
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
Differential Erosion: The varying rates of erosion of different rock types (e.g., soft rock eroding faster than hard rock).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
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
Distribution: The geographical spread or location of a resource across the Earth's surface.Pearson Edexcel
Domestic Sector: Water used in households for drinking, cooking, washing, and sanitation.Pearson Edexcel
Drought: A prolonged period of abnormally low rainfall leading to a shortage of water.Pearson Edexcel

E

Ecological Footprint: A measure of the impact of human activities, expressed as the area of productive land and water required to produce the goods consumed and assimilate the…Pearson Edexcel
Economic Water Scarcity: When water is available in nature, but a lack of money and infrastructure means people cannot access it safely.Pearson Edexcel
Ecosystem: A community of plants and animals (biotic) interacting with their physical environment (abiotic).Pearson Edexcel
Ecosystem Services: The benefits that humans obtain from ecosystems (e.g., food, flood regulation, recreation).Pearson Edexcel
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
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
Energy Demand: The total amount of energy required by a country or population.Pearson Edexcel
Energy Infrastructure: The physical framework (power stations, grids, pipelines) required for the generation and distribution of energy.Pearson Edexcel
Energy Mix: The combination of different energy sources (renewable and non-renewable) used to meet a country's energy demand.Pearson Edexcel
Energy Mix and Transition: The shift from finite fossil fuel reliance toward a diversified portfolio of renewable energy sources to ensure energy security and mitigate carbon emissions.AQA
Energy Security: The uninterrupted availability of energy sources at an affordable price.Pearson Edexcel
Enhanced Greenhouse Effect: The increased trapping of longwave infrared radiation in the Earth's atmosphere due to human activities adding extra greenhouse gases.Pearson Edexcel
Environmental Management: The strategies used to mitigate or adapt to geographical challenges.AQA
Eutrophication: The process by which a body of water becomes enriched in dissolved nutrients (like nitrates from fertilizers), stimulating the growth of aquatic plant life…Pearson Edexcel
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 Weather: A weather event that is significantly different from the average or usual weather pattern, and is especially severe or unseasonal.Pearson Edexcel

F

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 to generate waves.Pearson Edexcel
Financial Inclusion: The availability and equality of opportunities to access financial services.Pearson Edexcel
Floodplain Zoning: Restricting the type of development allowed on floodplains to reduce the impact of flooding.Pearson Edexcel
Food Insecurity: The state of being without reliable access to a sufficient quantity of affordable, nutritious food.Pearson Edexcel
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: Non-renewable energy sources formed from the remains of living organisms (coal, oil, natural gas).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: A physical weathering process where water enters cracks in rock, freezes and expands (by 9%), widening the crack until the rock shatters.Pearson Edexcel

G

Gender Disparity in Educational Attainment: Examination of the 'literacy gap' between genders, particularly in LICs (Low-Income Countries), and its direct correlation with Total Fertility Rates (TFR)…AQA
Gentrification: The process by which wealthier people move into, renovate, and restore housing and sometimes businesses in inner cities or other deteriorated areas.AQA, Pearson Edexcel
Geomorphic Processes: The interaction of sub-aerial processes (weathering and mass movement) with marine and fluvial energy to modify landforms.AQA
Geopolitics: The influence of geography, economics, and demography on the politics and foreign policy of a state.Pearson Edexcel
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 Period: A colder period during the Quaternary when ice sheets expand globally (commonly called an ice age).Pearson Edexcel
Global Atmospheric Circulation: The large-scale movement of air by which heat is distributed on the surface of the Earth.Pearson Edexcel
Globalisation: The process which has created a more connected world, with increases in the movements of goods (trade) and people (migration and tourism) worldwide.Pearson Edexcel
GNI (Gross National Income): The total value of goods and services produced by a country, plus income from overseas investments.AQA
Goods: Physical, tangible products obtained from the ecosystem that have economic or subsistence value.Pearson Edexcel
Greenfield Site: An area of land that has not been developed previously, often agricultural land or countryside.Pearson Edexcel
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

H

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: The use of artificial, often concrete or rock, structures to defend the coast against erosion and flooding.Pearson Edexcel
HDI (Human Development Index): A composite measure of development including life expectancy, education (mean/expected years of schooling), and GNI per capita.AQA
Honeypot Site: A location that attracts a very large number of tourists, often leading to overcrowding and environmental damage.Pearson Edexcel
Human Development Index (HDI): A composite measure of development created by the UN, combining life expectancy, education, and GNI per capita, scored between 0 and 1.Pearson Edexcel
Human-Environment Interaction: The evaluation of hard and soft engineering strategies in managing natural hazards and their subsequent impact on physical systems.AQA
Human-Physical Interrelationships: The investigation of how anthropogenic interventions, such as coastal hard engineering or urban regeneration projects, modify natural physical processes and…AQA
Hydraulic Action: The force of the river water colliding with rocks, compressing air in cracks and breaking the rock apart.Pearson Edexcel
Hydrological Drought: Reduced streamflow and groundwater levels due to reduced precipitation.Pearson Edexcel

I

Igneous Rock: Rock formed by the cooling and solidifying of molten magma or lava.Pearson Edexcel
Impermeable: A surface or rock type that does not allow water to pass through it.Pearson Edexcel
Industrial Sector: Water used in manufacturing processes, chemical plants, and for cooling in power stations.Pearson Edexcel
Inferential Statistical Analysis: The application of mathematical tests to determine the probability that observed geographical patterns are statistically significant rather than occurring by…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
Infrastructure: The basic physical and organizational structures and facilities (e.g., buildings, roads, power supplies, reservoirs) needed for the operation of a society.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
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 complex web of relationships between the living (biotic) and non-living (abiotic) components of an ecosystem, specifically how changes in one component,…AQA, Pearson Edexcel
Interglacial Period: A warmer period between glacials when ice sheets retreat and sea levels rise.Pearson Edexcel
Intermittency: The characteristic of certain renewable energy sources (like wind and solar) that do not produce energy continuously.Pearson Edexcel
Irrigation: The artificial application of water to land to assist in the production of crops.Pearson Edexcel

K

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

L

Lag Time: The time difference between peak rainfall and peak river discharge on a hydrograph.Pearson Edexcel
Landform Evolution: The sequential development of features such as wave-cut platforms, stacks, meanders, and oxbow lakes over varying temporal scales.AQA
Latent Heat: The energy released when water vapour condenses into liquid water in the atmosphere.Pearson Edexcel
Lateral erosion: Sideways erosion that widens the river valley.Pearson Edexcel
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
Literacy as a Driver of Economic Development: Analysis of how increased literacy rates facilitate the shift from subsistence agriculture to industrial and tertiary sectors, enhancing GNI per capita and…AQA
Longshore Drift: The zig-zag movement of sediment along a coastline, driven by waves approaching the shore at an angle determined by the prevailing wind.Pearson Edexcel
Longwave Infrared Radiation: Heat energy emitted by the Earth's surface back into the atmosphere.Pearson Edexcel

M

Magnitude: The size, extent, or intensity of a geographical event (e.g., an earthquake or flood).AQA
Managed Retreat: A soft engineering strategy involving the deliberate breaching of existing coastal defences to allow the sea to flood low-lying land, creating new salt marshes.Pearson Edexcel
Mass Movement: The downhill movement of weathered material under the force of gravity.Pearson Edexcel
Megacity: An urban area with a total population in excess of ten million people.AQA, Pearson Edexcel
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
Methodological Evaluation: Critical assessment of the strengths and weaknesses of specific graphical techniques, such as the visual impact of proportional symbols versus the precision…AQA
Milankovitch Cycles: Long-term variations in the Earth's orbit, tilt, and wobble that affect the distribution of solar radiation.Pearson Edexcel
Mitigation: Action taken to reduce or eliminate the long-term risk and hazards of climate change, primarily by reducing greenhouse gas emissions.AQA, Pearson Edexcel
Moraine: Unsorted, angular rock fragments deposited by a melting glacier.Pearson Edexcel
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 provided by multiple governments and distributed through international organisations like the World Bank or UN.Pearson Edexcel
Multiplier Effect: When an initial injection of investment leads to greater overall economic growth (e.g., a new factory creates jobs, workers spend money in local shops, shops…Pearson Edexcel

N

Natural Increase: The difference between the birth rate and the death rate.Pearson Edexcel
Natural Resource: Any feature or part of the environment that can be used to meet human needs.Pearson Edexcel
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 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

O

Observer Bias: When the researcher's own opinions or subjectivity influence the data collected.Pearson Edexcel
Opportunity Cost: The loss of other alternatives when one alternative is chosen.Pearson Edexcel
Orogeny: A period of mountain building caused by tectonic plate collisions.Pearson Edexcel
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

P

Pattern Recognition and Interpretation: The ability to identify clusters, anomalies, and trends within datasets, moving from 'what' the data shows to 'why' these patterns exist in a geographical…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
Perception and Sense of Place: The qualitative exploration of how individuals and groups experience, assign meaning to, and perceive locations, which often contrasts with objective,…AQA
Permafrost: A thick subsurface layer of soil that remains below freezing point throughout the year, occurring chiefly in polar regions.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 Water Scarcity: When there is simply not enough water available to meet demand due to climatic conditions (low rainfall).Pearson Edexcel
Plucking: A type of glacial erosion where meltwater freezes onto the bedrock, and as the glacier moves forward, it tears chunks of rock away.Pearson Edexcel
Post-industrial economy: An economy where the manufacturing sector is replaced by the service (tertiary) and information/research (quaternary) sectors.AQA
Prevailing Wind: The direction from which the wind blows most frequently.Pearson Edexcel
Primary Data: Data collected first-hand by the researcher specifically for the purpose of the investigation.Pearson Edexcel
Primary Effect: The initial impact of a natural event on people and property, caused directly by it.AQA

Q

Qualitative Data: Descriptive, non-numerical data based on observations and opinions (e.g., field sketches, bipolar surveys).Pearson Edexcel
Quality of Life: The general well-being of individuals and societies, including health, education, environment, and happiness.Pearson Edexcel
Quantitative Data: Data that can be measured and expressed numerically (e.g., velocity, pebble size).Pearson Edexcel
Quaternary Period: The most recent geological time period, spanning from about 2.6 million years ago to the present day.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
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
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
Reliability: The extent to which an investigation or measurement can be repeated by someone else and produce the same or similar results.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
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
Renewable Energy: Energy from a source that is not depleted when used and can be naturally replenished within a human lifetime (e.g., wind, solar).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
Resistant: The ability of a rock to withstand erosion.Pearson Edexcel
Resource Inequality: The disparity in resource consumption and access between High-Income Countries (HICs) and Low-Income Countries (LICs), driven by wealth, climate, and…AQA
Risk Assessment: Identifying potential hazards before fieldwork and detailing mitigation strategies to reduce risk.Pearson Edexcel
Rotational slip: The circular movement of glacial ice in a hollow, which causes severe erosion and over-deepening.Pearson Edexcel
Rural-Urban Migration: The movement of people from the countryside to towns and cities.Pearson Edexcel

S

Sample Size: The number of observations or measurements taken in an investigation.AQA
Secondary Data: Data collected by someone else that already exists (e.g., OS maps, BGS geology maps, EA flood data).Pearson Edexcel
Secondary Effect: The after-effects that occur as an indirect result of the primary impacts.AQA
Sedimentary Rock: Rock formed from the accumulation and compaction of sediment (sand, mud, shells) over millions of years.Pearson Edexcel
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 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
Situation: The location of a settlement in relation to its surrounding environment, including other settlements, transport routes, and physical features.Pearson Edexcel
Soft Engineering: Managing the coast by working with natural physical processes, rather than using artificial structures.Pearson Edexcel
Spatial Accuracy and Projection: The mathematical transformation of the 3D geoid onto 2D surfaces and the resulting distortions in area, shape, and distance, specifically regarding the…AQA
Spatial Representation: The application of cartographic and GIS tools to visualize quantitative data, revealing hidden patterns of inequality, flow, and environmental change that…AQA
Spatial Scale: The different levels at which geographical phenomena operate, from local to global.Pearson Edexcel
Spit: A long, narrow ridge of sand or shingle extending out from the coast into the sea, formed by longshore drift.Pearson Edexcel
Squatter settlement: An area of poor-quality housing, lacking in services, often developed illegally on land not owned by the occupants.AQA
Stakeholder: An individual, group, or organisation with an interest in, or affected by, a particular decision or project.Pearson Edexcel
Stakeholder Conflict: The divergent priorities of different groups, such as Transnational Corporations (TNCs), local residents, and environmental NGOs.AQA
Standard of Living: The level of wealth, comfort, material goods, and necessities available to a certain socioeconomic class.Pearson Edexcel
Storm Surge: A rapid rise in sea level caused by the low pressure of the storm and strong winds pushing water onshore.Pearson Edexcel
Stratification: The arrangement of the rainforest vegetation into distinct vertical layers (Emergent, Canopy, Understory, Forest Floor).Pearson Edexcel
Subduction: The process where denser oceanic crust sinks beneath less dense continental crust at a destructive plate margin.AQA
Subsistence Farming: Farming that provides enough food for the farmer and their family to live on, with little or none left over to sell.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
Sustainability: The balance between social progress, economic viability, and environmental protection.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: The evaluation of strategies designed to exploit natural resources without causing permanent environmental degradation, including international agreements,…AQA, Pearson Edexcel
Sustainable Urban Living: A sustainable city is one in which there is minimal damage to the environment, the economic base is sound with resources allocated fairly, and jobs secure,…Pearson Edexcel
Swash: The movement of water up the beach after a wave breaks.Pearson Edexcel
Symbolic Representation: The use of standardized symbology, color ramps, and proportional symbols to communicate complex geographical distributions and the semiotics of map design.AQA
Systematic Sampling: Collecting data at regular, set intervals (e.g., every 5 metres along a transect).Pearson Edexcel

T

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
Terminal Groyne Syndrome: The accelerated erosion experienced on the downdrift side of the last groyne in a series, caused by sediment starvation.Pearson Edexcel
The Digital Divide and Information Literacy: Evaluation of the transition from traditional literacy to digital competency, and how unequal access to ICT infrastructure creates new spatial inequalities in…AQA
The Route to Enquiry: The systematic framework governing geographical investigation, encompassing hypothesis formulation, primary and secondary data collection, data presentation,…AQA
Thermal Capacity: The ability of a substance to store heat.Pearson Edexcel
Thermal Expansion: The process where water increases in volume as it gets warmer.Pearson Edexcel
Thermoelectric Power: Electricity generation that uses heat to produce steam, requiring massive amounts of water for cooling.Pearson Edexcel
Till: Unsorted, unstratified glacial deposits containing a mixture of clay, sand, gravel, and boulders.Pearson Edexcel
Till (Boulder Clay): An unsorted, unstratified mixture of sand, clay, and boulders deposited directly by a melting glacier.Pearson Edexcel
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
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
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
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
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

U

Urban Growth: The increase in the total population size of an urban area.Pearson Edexcel
Urban Inequality: Differences in quality of life, wealth, and access to services between different areas within the same city.Pearson Edexcel
Urban sprawl: The unplanned and uncontrolled growth of urban areas into the surrounding countryside.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: The process by which an increasing proportion of a country's population lives in towns and cities.AQA, Pearson Edexcel

V

Validity: The extent to which a test or investigation actually measures what it sets out to measure.AQA
Vertical erosion: Downward erosion that deepens the river channel.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
Vulnerability: The susceptibility of a population to the damaging effects of a hazard.Pearson Edexcel

W

Water Deficit: A situation where the demand for water is greater than the available supply.Pearson Edexcel
Water Insecurity: The state where a population lacks access to sufficient clean water, categorized into physical scarcity (lack of water) and economic scarcity (lack of…AQA, Pearson Edexcel
Water Scarcity: A severe lack of water, defined as annual supplies dropping below 1,000m³ per person per year.Pearson Edexcel
Water Stress: When demand for water exceeds the available supply during a certain period, or when poor quality restricts its use (UN defines as < 1,700m³ per person/year).Pearson Edexcel
Water Surplus: A situation where the supply of water is greater than the demand for it.Pearson Edexcel
Water Transfer Scheme: Large-scale engineering projects that move water from areas of surplus to areas of deficit via pipes and canals.Pearson Edexcel
Weathering: The breakdown and decay of rock by natural processes in situ (without moving).Pearson Edexcel
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

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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