Chemical Reaction

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Across
  1. 1. The things that react together in a reaction
  2. 3. This change is reversible
  3. 5. Which side of the fire triangle is taken away by water?
  4. 6. a substance which contains energy that is released by burning is called a...
  5. 7. You might see this given off in a chemical reaction
  6. 9. Another word for irreversible
  7. 11. A substance that is made only of hydrogen and carbon is called a...
  8. 14. This is the product of combustion that you can drink
  9. 16. Iron + oxygen --> ?
Down
  1. 2. This change always produces a new substance
  2. 3. Something that is produced at the end of a chemical reaction
  3. 4. This turns cloudy when mixed with carbon dioxide
  4. 8. This is the product of combustion that you cannot drink
  5. 10. Burning is also known as...
  6. 11. You hear a squeaky pop when this substance burns
  7. 12. During a reaction chemicals may split up or ...
  8. 13. This word means something that can go back
  9. 15. The three things needed for a fire to burn are fuel, heat and ...