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Metals and Plastics
Overview of the Chapter 17 and 18
| Term | Definition |
|---|---|
| Aluminium | Used in the manufacture of drink cans. |
| Casting | Putting raw or pig iron into moulds |
| Former | A shape around which the plastic is moulded. |
| Galvanising | The process of dipping steel into zinc to protect it. |
| Alloy | A mixture of two or more metals |
| Acrylic | Another name for perspex |
| Lead | A dull grey metal that is heavy, soft and malleable |
| Biodegradable | The ability to break down and decay over time |
| Ferrous | Metals that contain Iron |