Matter

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Across
  1. 2. water vapor condenses to a liquid
  2. 4. when water gets cold and turns to ice
  3. 5. dry ice turns from a solid to a gas
  4. 7. firm and stable
  5. 8. substance or matter in a state in which it will expand freely to fill the whole of a container
  6. 9. substance that flows freely but is of constant volume
  7. 10. water becomes water vapor
Down
  1. 1. a group of atoms bounded together
  2. 3. a gas
  3. 6. the basic unit of a chemical element