Evidence of Chemical Changes

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Across
  1. 3. When a reaction absorbs heat and becomes cooler than the surrounding area
  2. 5. A new substance that is created by the rearranging of atoms after a chemical reaction
  3. 7. When a substance undergoes a change in appearance, but a new substance is not created
  4. 8. An element or compound that exists prior to a chemical reaction
  5. 9. When elements or compounds combine to create new substances
Down
  1. 1. the symbol in a chemical reaction that shows the passage of time
  2. 2. Insoluble solids that emerge out of a liquid solution during a chemical reaction
  3. 3. When a reaction emits heat and becomes warmer than the surrounding area
  4. 4. A sign of a chemical change; can be in the form of light or heat
  5. 6. Does not dissolve in liquid