Physical and Chemical Change

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Across
  1. 2. The starting substances in chemical reactions
  2. 5. A change that results in a new substance being formed
  3. 12. A gradual erosion of rocks and buildings that occurs when limestone and marble react chemically with the carbonic acid in rainwater
  4. 14. Evaporation of solvent from a solution to leave solute behind as crystals
  5. 15. A change of state where a liquid changes to a gas at the surface of the liquid
  6. 17. A change of state where a gas is cooled and forms a liquid
  7. 18. A change of state where a liquid is heated and changes to a gas within the liquid
  8. 20. A decrease in size
  9. 21. Any chemical reaction where a substance burns in oxygen to produce light and heat
Down
  1. 1. A change of state from gas to solid
  2. 3. The change of state from liquid to solid
  3. 4. A change that does not result in a new substance being produced
  4. 6. The process of rearranging atoms in substances to form different substances
  5. 7. A change of state from solid to gas
  6. 8. A simple chemical equation where chemicals are represented by their names
  7. 9. A solid formed during a chemical change
  8. 10. A chemcial reaction that converts oxygen and glucose into water and carbon dioxide while releasing energy.
  9. 11. The chemical reaction in plants that converts carbon dioxide and water into oxygen and glucose using energy from the sun
  10. 13. An increase in size
  11. 16. The change of state when a solid is heated and forms a liquid
  12. 19. The substances formed in chemical reactions