Science Vocab Words

12345678910
Across
  1. 2. A substance created during a chemical reaction
  2. 5. the basic unit of a chemical element.
  3. 6. A substance that takes part in and undergoes change during a chemical reaction
  4. 8. absorbing heat
  5. 9. The process by which one or more substances
  6. 10. a thing that is composed of two or more separate element
Down
  1. 1. A chemical reaction in which heat is released
  2. 3. to produce one or more different substances
  3. 4. A chemical reaction in which heat is absorbed
  4. 7. Releasing heat