BTEC review

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Across
  1. 4. A type of distillation that separates the fractions of crude oil
  2. 5. A material that changes colour at deifferent temperatures
  3. 6. Opposite to an alkali
  4. 7. Increasing this can increase the rate of a chemical reaction
  5. 10. A material used in bullet proof jackets
  6. 11. Found in the outer shell of an atom
Down
  1. 1. One natural disaster caused by the movement of the Earth's plates
  2. 2. A gas that causes acid rain
  3. 3. If rubbish is not taken to landfill it is...
  4. 8. A hydrocarbon that contains a double bond
  5. 9. A metal in group 1
  6. 12. An organic compound that smells sweet