Using materials

3 lessons in Using resources.

15 exam questions · 27 marks

10.7 Corrosion and its prevention What corrosion and rusting are, the conditions needed for iron to rust, and how corrosion is prevented by barriers, sacrificial protection, galvanising and electroplating. Separate only AQA Edexcel OCR 5 questions 10.8 Alloys Why alloys are harder than pure metals, the composition and uses of bronze, brass, gold alloys, steels and aluminium alloys, carat values of gold, and how the composition of an alloy is matched to its use. Separate only AQA Edexcel OCR 5 questions 10.9 Ceramics, polymers and composites How soda-lime and borosilicate glass and clay ceramics are made, how low and high density poly(ethene) differ, the structures of thermosoftening and thermosetting polymers, what composites are, and how to choose materials using their properties. Separate only AQA Edexcel OCR 5 questions