Matter

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Across
  1. 4. A substance that flows freely
  2. 5. A substance that expands freely
  3. 6. The basic unit of a object
  4. 7. A firm and stable object
  5. 10. Changing the structure of an object
Down
  1. 1. Changing what the object looks like
  2. 2. Amount of space an object takes up
  3. 3. Amount of matter that makes up an object
  4. 8. Amount of mass in a unit of volume
  5. 9. Anything that has mass and volume