physical and chemical changes puzzle

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Across
  1. 4. oxide on heating changes to which colour
  2. 6. reversible change
  3. 8. of quick lime in water is an example of ______ change
  4. 10. sugar is what type of change
  5. 11. point of ice is _____ degree Celsius
  6. 13. in which liquid changes to gas is ______
  7. 16. at which a solid changes to liquid at atmospheric pressure is called ______
  8. 18. wire turns red hot on heating
  9. 19. change that absorbs heat energy is called ______
  10. 20. point of water is _____ degree Celsius
Down
  1. 1. in which solid changes to liquid is ______
  2. 2. of iron is an example of which change
  3. 3. point of acetone is _____ degree Celsius
  4. 5. of ammonium chloride in water is an example of ______ change
  5. 7. point of tungsten is _____ degree Celsius
  6. 9. at which liquid changes to gas at atmospheric pressure is called ______
  7. 12. change that releases heat energy is called _____
  8. 14. name for quick lime is _______
  9. 15. of candle is which change
  10. 17. non reversible change