Materials Non-metallic – Properties Brittle Do not conduct electricity – Examples Wood Ceramics – Properties » Brittle » Hard » Strong in compression, » Weak in shearing and tension Plastics – Properties » Flexible » Lightweight » Strong in compression and tension » Long lasting Metallic – Properties Conduct electricity Malleable Ductile – Examples Mined – Copper – Aluminium – Iron Alloys – Mixtures of metals/nonmetals » Bronze = Cu + Sn » Brass= Zn + Cu » Steel= Fe + C