Across
- 2. iron oxide that forms on the surface of steel
- 3. Compound that forms on aluminium's surface, protecting it
- 7. A mixture of two or more metals (e.g. brass, steel)
- 10. Rock or mineral that contains a useful metal
- 12. Workshop machine that spins metal so it can be cut or shaped
- 13. The main element in ferrous metals
- 14. Iron alloyed with a small amount of carbon
Down
- 1. Computer ___ Control: automated precision machining
- 4. reprocessing old metal to make new products
- 5. the ore that Aluminium is extracted from
- 6. Property that allows a metal to be hammered into shape
- 8. Reddish-brown non-ferrous metal used in electrical wiring
- 9. joining metals by melting and fusing them together with heat
- 11. Property that lets a metal be drawn out into wire