matter vocab

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Across
  1. 1. Chemical substance held together by attraction of atoms
  2. 4. The same
  3. 5. Become liquefied by heat
  4. 10. AKA chemical substance
  5. 11. A change that can't be reversed
  6. 12. Firm shape
Down
  1. 2. Makes up the periodic table
  2. 3. Different
  3. 6. Solid, liquid, gas
  4. 7. For ex. H2O
  5. 8. Substances mixed together
  6. 9. A change that can be reversed