| A | B |
|---|
| Alloy | A mixture of a metal and one or more other metals |
| Amalgam | An alloy that contains mercury |
| Ores | Materials in Earth from which metals can be economically obtained |
| Ceramic | A material made from dried clay or clay like materials |
| Cermets | Materials designed and made to have properties of both ceramic alloys |
| Recycling | The recovering and processing of waste materials to regain them for human use |
| Plastic | A material made from synthetic polymers |
| Synthetic Fiber | A strand of a synthetic polymer |
| Composite | A mixture of two materials, one embedded in the other |
