Particle theory

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Across
  1. 2. Liquids and gases can ...
  2. 3. No fixed volume or shape
  3. 5. When a solid is heated, the particles ...more
  4. 6. The process by which a liquid becomes a gas
  5. 8. Gas can move
  6. 10. The particles in a gas do not ... each other.
  7. 13. Between particles there is
  8. 15. Process by which a gas changes its state to become a liquid
  9. 18. Anything that has mass and takes up space
  10. 19. The liquid in a thermometer changes so that it can be used to measure a ...
  11. 21. The temperature at which a liquid boils air that is leaving the liquid
  12. 22. Fixed volume, no fixed shape
  13. 23. All matter is made up of
Down
  1. 1. Solids and liquids cannot be ...
  2. 2. The particles in a gas are not attracted to each other and they can move ...
  3. 4. Solids are held firmly in place by forces of ...
  4. 7. Particles are always
  5. 9. The particles can now move ... each other.
  6. 11. Solid expands when it is ...
  7. 12. The process by which a liquid turns into a solid
  8. 14. The temperature at which a liquid becomes a solid
  9. 16. The particles in a solid state move around ... point
  10. 17. Fixed volume and shape
  11. 18. Process by which a solid becomes a liquid
  12. 20. Liquid to gas