Chemistry GCSE
Impurities
What Impurities means in Chemistry GCSE, as defined for AQA.
Definition of Impurities
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Reference: AQA
Unwanted substances in a material that can change its properties, such as copper in steel making it crack during rolling.
Topics that use Impurities
- Ways of reducing the use of resources (AQA GCSE)
Related terms
- Crude oil as the feedstock for most plastics
- Earth's finite raw materials
- Evidence-based decision making
- Fossil fuels
- Habitat and landscape destruction
- Landfill
- Limited resources
- Manufacture of glass, building materials and clay ceramics
Using Impurities in the exam
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