Chemical Reactions

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Across
  1. 2. An object, diagram, or computer program that helps us understand something by making it simpler or easier to see
  2. 3. Something that can be observed about a substance, such as its color, smell, or boiling point
  3. 5. A starting substance that is part of a chemical reaction.
  4. 7. A process in which atoms rearrange to form new substances
  5. 9. A group of two of more different atoms held together by a chemical bond.
  6. 10. Something that is made of all the same atoms or groups of atoms
Down
  1. 1. A group of two of more atoms held together by a chemical bond.
  2. 4. To change the order or position of something.
  3. 6. An ending substance that is made during a chemical reaction.
  4. 8. The tiny pieces that all matter — all of the stuff in the world — is made of