Science

Properties of Materials

By the end of the unit, pupils should be able to:

Compare and group everyday materials based on properties such as hardness, solubility, transparency, electrical and thermal conductivity, and response to magnets.
Recognise that some materials dissolve in liquids to form a solution — and describe ways to recover a substance from a solution.
Use knowledge of solids, liquids, and gases to decide how mixtures might be separated — for example by filtering, sieving, or evaporating.
Give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials (e.g. why metal, wood, plastic might be chosen for certain objects).
Understand that some changes are reversible (like mixing or dissolving) while others result in new materials and are not usually reversible — for example when materials are burned or react chemically (though deeper chemical change is often covered later).

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