Chemical reaction

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Across
  1. 4. chemicalreaction
  2. 6. copy
  3. 7. plants
  4. 10. measurement
  5. 12. combination
  6. 13. chemical element
  7. 14. effects
  8. 15. grouping
Down
  1. 1. feedback
  2. 2. atoms
  3. 3. atomic
  4. 5. repetitive
  5. 8. fire
  6. 9. swiched
  7. 11. temerautre