Chemical Changes Vocabulary

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Across
  1. 4. substance that speeds up the rate of a chemical reaction
  2. 7. A substance that slows down or stops a chemical reaction
  3. 9. A reaction that ABSORBS energy in the form of heat
  4. 10. Energy needed to get a reaction started
Down
  1. 1. A reaction that releases energy in the form of heat
  2. 2. a change in the state of matter, no new substance
  3. 3. substance that is present at the start of a chemical reaction
  4. 5. A change that forms new substances with different properties
  5. 6. A solid that forms from a solution during a chemical reaction.
  6. 8. A substance produced in a chemical reaction