Particle Theory

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Across
  1. 3. touching but in no order
  2. 4. the transition of a substance directly from the solid to the gas state without passing through the liquid state.
  3. 5. melting point for pure water
  4. 7. has lots of internal energy
  5. 8. boiling point for pure water
  6. 9. the change from a gas to a liquid
Down
  1. 1. when the internal energy of a solid increases
  2. 2. the rapid vaporisation of a liquid
  3. 4. vibrate in a fixed position
  4. 6. when a liquid changes to a solid when it is put below its freezing point