Chemical reaction

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Across
  1. 2. All stuff in the world is made of these
  2. 3. the temperature a substance changes from liquid phase to gas phase
  3. 8. the types and number of atoms that make up a substance
  4. 9. when atoms rearrange to make new substances
  5. 10. a group of atoms
  6. 12. structure formed by repeating groups of atoms
Down
  1. 1. causing damage
  2. 4. new substance made after a chemical reaction
  3. 5. when the order of atoms change
  4. 6. the temperature a substance changes from solid to liquid
  5. 7. something that is made up of the same atoms or group of atoms
  6. 11. starting substance before a chemical reaction