Exo/Endo

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Across
  1. 3. Has definite volume but no definite shape
  2. 4. Distinct forms of matter
  3. 7. Take part and undergoes change during a chemical reaction
  4. 8. Has definite volume and shape
  5. 9. Also known as thermal energy
  6. 10. Heat is released
Down
  1. 1. The simplest unit of a chemical compound
  2. 2. Has indefinite volume and shape
  3. 5. Heat is absorbed
  4. 6. A substance produced during a chemical reaction