Combustion Review

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Across
  1. 3. Gas needed for burning
  2. 7. Reaction with oxygen
  3. 8. What is released during burning
  4. 9. Substance that burns to release energy
  5. 11. Releases energy to surroundings
  6. 12. Unwanted substances in fuel
  7. 13. Energy that makes things warmer
  8. 15. Combustion with limited oxygen
Down
  1. 1. Starting a fire
  2. 2. Takes in energy
  3. 4. Another word for combustion
  4. 5. Visible part of a fire
  5. 6. Combustion with plenty of oxygen
  6. 10. How hot something is
  7. 14. Burning a fuel in oxygen