rinas puzzle

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Across
  1. 4. A substance produced during a chemical reaction
  2. 7. The process by which one or more substances
  3. 9. during a chemical reaction
  4. 10. A chemical reaction in which heat is absorbed
Down
  1. 1. something that warms your hand, example of exo
  2. 2. A chemical reaction in which heat is released
  3. 3. A substance that takes part in and undergoes
  4. 5. When iron rusts, example of exothermic
  5. 6. energy The total kinetic (motion) energy of the tiny particles
  6. 8. to produce one or more different substances