4 States of Matter

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Across
  1. 3. a distinct and homogeneous state of a system with no visible boundary separating it into parts
  2. 4. a measure of how easily something will start on fire
  3. 7. comes before condensation in the water cycle
  4. 11. something about a substance that can observed without changing the substance
  5. 12. the rarest state of matter on earth
  6. 16. the temperature at which a liquid will bubble and vaporize
  7. 17. the state in which liquids give off vapor and bubble
  8. 18. a process that involves rearranging molecular structures
  9. 19. a material created by slow cooling of a phase
  10. 20. a transition of matter that causes the particle of a substance to flow freely
Down
  1. 1. this happens to dry ice when it is left out
  2. 2. causes one substance to turn into one or more different substances
  3. 5. the temperature at which atoms slow to the point of only being able to vibrate
  4. 6. the transition of matter where a liquid turns into a gas
  5. 8. the state of matter that will fill its entire space
  6. 9. a phase change that slows down particles
  7. 10. a temperature at which particles begin to move freely
  8. 13. the state of matter where particles can flow freely
  9. 14. phase of matter where particles can only vibrate
  10. 15. happens to cold objects outside on hot days