Particle Model for Matter Review

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Across
  1. 3. Has a fixed shape and volume
  2. 4. Word which means how much space something takes up
  3. 10. Process of turning a gas directly into a solid
  4. 11. Has a variable shape and volume
  5. 12. Process of turning a gas into a liquid
  6. 14. Another word for what state matter is in.
  7. 16. Process of turning a solid directly into a gas
  8. 19. Type of energy which increases with temperature
  9. 20. Slow vaporisation at temperatures below the boiling point
  10. 21. Process of turning a liquid into a solid
  11. 23. Word which is a measure of how much matter there is in a substance
Down
  1. 1. Another word which means it does not change.
  2. 2. A type of change in which the substances remain the same composition but may have a different state size or shape.
  3. 5. Has a fixed volume but variable shape
  4. 6. Process of turning a solid into a liquid
  5. 7. When vaporisation happens rapidly we say it has reached the _________ point.
  6. 8. Means that matter can be squeezed into a smaller space or volume
  7. 9. Process of turning a liquid into a gas
  8. 10. Solid carbon dioxide (two words)
  9. 13. Means it does not change
  10. 15. The study of matter and how it behaves
  11. 17. gases are the least ______ form of matter.
  12. 18. Gases volumes are .....
  13. 22. These are the smallest particles of matter that normally exist on their own.