Using diagrams to illustrate your answers describe the structure (including the atomic

structure) of the following materials:

plain carbon steel (0.15% C), as used to make a body panel for a car

high density polyethylene (HDPE), as used to make non-carbonated drinks containers

silicon carbide, as used in ball type flow control valves

carbon fibre reinforced polymer (CFRP), as used in the construction of aircraft

piezoelectric, as used in the sensor which fires the airbag in a car