Phase Change Crossword

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Across
  1. 2. the energy an object has because it is moving.
  2. 4. when a solid phase moves to a liquid phase.
  3. 5. the relative size of things
  4. 7. when a gas moves to a liquid phase.
  5. 9. molecules of a substance move freely and are spread far apart usually not visible.
  6. 12. a measure of how hot or cold something is.
  7. 15. when a gas phase moves directly to a solid state.
  8. 16. a pull between two molecules that is always the same for a given substance.
  9. 18. a group of atoms joined together in a particular way.
Down
  1. 1. when a liquid phase is now a solid phase.
  2. 3. the quantity of matter in an object.
  3. 6. molecules of a substance vibrate in place, it does not flow or take the shape of the container.
  4. 8. when a liquid phase moves to a gas phase.
  5. 10. molecules of a substance move around relative to each other.
  6. 11. when a solid phase moves directly to a gas phase.
  7. 13. a noticeably different form or state of the same substance.
  8. 14. the amount of space that a substance occupies.
  9. 17. the process or period of changing form one form to another.