BRAINCAKEUsing resources
Revision notes for Using resources in AQA Chemistry (8462). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.
- Using the Earth's resources and sustainable developmentHumans use the Earth's resources to provide warmth, shelter, food and transport.
- Potable waterWater that is safe to drink is called potable water.
- Waste water treatmentUrban lifestyles and industrial processes produce large amounts of waste water, which must be treated before it is released into the environment.
- Alternative methods of extracting metals (HT only)The Earth's resources of metal ores are limited.
- Life cycle assessmentA life cycle assessment (LCA) is used to judge the effect a product has on the environment.
- Ways of reducing the use of resourcesMetals, glass, building materials, clay ceramics and most plastics are made from limited raw materials.
- Corrosion and its preventionCorrosion is the destruction of materials by chemical reactions with substances in the environment.
- Alloys as useful materialsMost metals in everyday use are alloys, which are mixtures of a metal with other elements.
- Ceramics, polymers and compositesMost glass is soda-lime glass, made by heating a mixture of sand, sodium carbonate and limestone.
- The Haber processThe Haber process is used to manufacture ammonia, NH3.
- Production and uses of NPK fertilisersCrops take nitrogen, phosphorus and potassium out of the soil.