Matter

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Across
  1. 5. process in which gas changes to liquid
  2. 7. air is a mixture of many ___________
  3. 8. a solid substance used for writing
  4. 9. the process by which liquid changes to solid
Down
  1. 1. state of matter which flows freely.
  2. 2. state of matter which you can see, feel and hold
  3. 3. the process by which solid changes to liquid
  4. 4. anything that has mass and occupies space.
  5. 6. liquid substance present in oceans