particle theoty group

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Across
  1. 4. the amount of space that an object occupies
  2. 9. water in a gaseous state
  3. 10. the energy of motion
  4. 12. if something is compressible, it volume an change when pressure is applied
  5. 14. to increase in size or volume
  6. 16. all matter is made up of tiny particles
  7. 18. to change directly from solid to gas
  8. 19. to change gas to a liquid using temperature
  9. 21. evaporation of water from a plant's leaves
Down
  1. 1. to decrease in size or volume
  2. 2. the process by which different substance mix as a result of the random motion of their particles
  3. 3. something so squeezed that is takes up less space
  4. 5. anything that takes up space
  5. 6. to make a liquid into a solid
  6. 7. to stay the same
  7. 8. the continuous circulation of our water
  8. 11. a state of matter that occupies the whole of its container
  9. 13. the temperature that makes a solid in to a liquid
  10. 15. the amount of physical matter an object contains
  11. 17. a state of matter between solids and gases
  12. 18. the arrangement of a substance
  13. 20. a state of matter which is fixed