Changes in State

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Across
  1. 1. has a definite volume but no definite shape
  2. 5. a unit of heat
  3. 7. variable shape and volume
  4. 9. has a definite shape and volume
  5. 10. change of a gas into plasma
  6. 11. gaseous water
  7. 13. change of a solid directly to a gas
  8. 15. to change from solid to liquid
  9. 17. occurs when a gas cools and changes to a liquid
  10. 18. thermal expansion states this happens when temperature decreases
  11. 19. charged part of atom left after electrons break away
Down
  1. 2. going directly from a gas to a solid
  2. 3. determined by motion and spacing of particles
  3. 4. evaporation and boiling
  4. 6. to change from a liquid to gas on the surface
  5. 8. variable shape and volume of charges particles
  6. 12. the state of a material depends on this
  7. 14. change of a liquid to gas throughout the material
  8. 16. theory used to explain changes of state