Metal

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Across
  1. 2. contains iron
  2. 5. has a very high melting point
  3. 7. life supporting component of air
  4. 8. comes from ore
  5. 9. combines metal together with heat
  6. 10. a silver white metal
  7. 12. rapidly cooling
  8. 14. firm and rigged
Down
  1. 1. changes the level of hardness
  2. 3. easy to mould
  3. 4. improve the hardness and elasticity
  4. 5. capable of being drawn out or stretched
  5. 6. a steel instrument
  6. 11. coating of iron
  7. 13. higher proportion of carbon then steel