#C4.1.1
compare quantitatively the physical properties of glass and clay ceramics, polymers, composites and metals, including melting point, softening temperature (for polymers), electrical conductivity, strength (in tension or compression), stiffness, flexibility, brittleness, hardness, density, ease of reshaping
#C4.1.2
explain how the properties of materials are related to their uses and select appropriate materials given details of the usage required
#C4.1.3
describe the composition of some important alloys in relation to their properties and uses, including steel