physical v chemical

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Across
  1. 3. Transforms one type of matter into another kind.
  2. 4. Tendency to crack or break.
  3. 5. Ability to be stretched then return to size
  4. 6. Able to be burned.
  5. 7. Mass per unit volume.
Down
  1. 1. The temperature a substance goes from liquid to gas.
  2. 2. Letting light pass through something.