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Across
  1. 2. a liquid made from oil that we use as a fuel in cars
  2. 5. a very light metal
  3. 7. a rock used to make aluminum
  4. 8. heating and melting a metal ore to make pure metal
  5. 9. a material that is used for burning, a substance such as oil or gas that is used to provide heat or power, usually by being burned
Down
  1. 1. a rock used to make metal like iron
  2. 3. a material that is part of many natural materials including wood, coal and diamond
  3. 4. a black liquid found in the ground used as a fuel
  4. 6. a liquid made from oil that is used as a fuel in lorries and some cars
  5. 7. a rock from which metal can be extracted