BCE Crossword

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Across
  1. 1. car engine
  2. 4. the study of matter and how it changes
  3. 5. energy is absorbed
  4. 7. AB+DC=AD+CB
  5. 9. when one side is equal to the other
  6. 10. breakdown
Down
  1. 2. AB+C=AC+B
  2. 3. adding
  3. 6. anything with mass
  4. 8. Releases heat