Chemistry Crossword

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Across
  1. 1. Material.
  2. 3. A chemically combined substance.
  3. 6. to give off heat.
  4. 11. These guys make up everything.
  5. 12. to trap heat.
  6. 13. A substance that is not combined chemically.
  7. 14. chemicals that cannot be broken down any further.
  8. 15. the size of something.
Down
  1. 2. how close you can get to the correct number.
  2. 4. how close you can get your answers to line up.
  3. 5. not mixed well.
  4. 7. a well mixed substance.
  5. 8. very compact.
  6. 9. what amount of space this takes up.
  7. 10. Unit The SI unit for the seven base units.