States of Matter and Phase Changes

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Across
  1. 3. energy of particles affects their arrangement and ___
  2. 7. state of matter with electrically charged particles
  3. 8. "___ point"; temperature required for a substance to change from solid to liquid
  4. 12. changing from solid directly to gas
  5. 14. average speed of motion of particles
  6. 17. state of matter with definite shape and volume
  7. 18. changing from gas to liquid
  8. 19. changing from liquid to solid
Down
  1. 1. state of matter with indefinite shape and definite volume
  2. 2. True or False: temperature remains constant while a substance is completely a liquid
  3. 4. two forms of vaporization are boiling and ___
  4. 5. changing from gas directly to solid
  5. 6. changing from liquid to gas
  6. 9. state of matter with indefinite shape and volume
  7. 10. another way to say "phase of matter" is "___ of matter"
  8. 11. section representing a phase change on a phase change graph
  9. 13. changing from solid to liquid
  10. 15. "condensing ___"; temperature required for a substance to change from gas to liquid
  11. 16. the exchange of thermal energy
  12. 17. section representing a phase on a phase change graph