Chemical Reactions

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Across
  1. 3. the relative size of things
  2. 4. object, diagram, or computer program that helps us understand something by making it simpler or easier to see
  3. 5. change the order or position of something
  4. 6. tiny pieces that all matter is made of
  5. 7. something that can be observed about a substance (i.e. smell, color, phase, etc.)
  6. 9. group of atoms joined together in a particular way
  7. 10. something that is made of all of the same atoms or groups of atoms
  8. 13. letters and numbers showing the types and number of atoms that repeat to make a substance
  9. 14. starting substance in a chemical reaction
Down
  1. 1. process in which atoms rearrange to form new substances
  2. 2. structure formed by repeating groups of atoms that are linked together
  3. 8. temperature at which a substance changes from solid to liquid
  4. 11. ending substance in a chemical reaction
  5. 12. temperature at which a substance changes from a liquid to a gas