Chemical Reactions

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Across
  1. 2. Describes the change which happens when there is a change of state.
  2. 6. A reaction which gives out energy.
  3. 8. Carbon compound formed when fuels burn.
  4. 9. Describes the positions of particles in liquids and gases.
  5. 10. Solid,......... and gas are the 3 states of matter.
  6. 11. A solid ......... to form a liquid.
  7. 13. Describes temperature when a substance changes state.
  8. 15. This may change during a chemical reaction.
  9. 17. Solid particles do this.
Down
  1. 1. Describes a reaction where something breaks down.
  2. 3. You see these when a reaction produces a gas.
  3. 4. The scientific word for burning.
  4. 5. A chemical formed when 2 elements join together.
  5. 7. Describes the change which happens when a chemical reaction takes place.
  6. 12. What you must do to a gas to form a liquid.
  7. 14. Apparatus used to measure temperature.
  8. 16. Gas in the air, needed for burning.