phases of matter

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Across
  1. 3. a substance that can be condensed to a liquid by increasing its pressure
  2. 6. a state of matter whose molecules are closely bound together and can only vibrate
  3. 8. the smallest amount of a chemical substance that can exist
  4. 9. the state of matter distinguished from the solid and liquid states by relatively low density and great expansion
Down
  1. 1. to cause a gas or vapour to change to a liquid
  2. 2. the presence of water
  3. 4. a substance that can easily move and change shape such as water ,air,or plasmas
  4. 5. to convert or change into a vapour
  5. 7. a state of matter that can change its shape by flowing and it is difficult to compress