Phases of Matter

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Across
  1. 3. Matter in this phase has freely flowing molecules. They have no definite shape or volume. They fill their container.
  2. 5. Liquids and gases are considered ________ because they have molecules that can move past each other.
  3. 8. This is the last name of the scientist that determined that as the pressure of a gas increases, its volume decreases.
  4. 9. The phase change from gas to solid.
  5. 13. The relationship between temperature and volume, and the relationship between temperature and pressure in a gas is a _________ relationship.
  6. 14. Carbon dioxide sinks below air because it is more ________ than air.
  7. 17. The average kinetic energy of molecules moving as a result of thermal energy.
  8. 20. Vaporization that happens slowly over time.
  9. 21. The phase change form gas to liquid.
  10. 23. Vaporization that happens rapidly as a result of a rapid increase in temperature
Down
  1. 1. Matter in this phase has tightly compacted molecules that vibrate in place.
  2. 2. The relationship between pressure and volume in a gas is a _______ relationship.
  3. 4. The phase change from solid to gas.
  4. 6. The phase change from gas to plasma.
  5. 7. The thermal energy that causes molecules to move and drives phase changes.
  6. 10. The phase change from solid to liquid.
  7. 11. This is the last name of the scientist that determined that as the temperature of a gas increases, its volume increases.
  8. 12. Matter in this phase is moving so quickly that it has split into positive and negative ions.
  9. 15. The phase change from liquid to solid.
  10. 16. The phase change from plasma to gas.
  11. 18. This is the last name of the scientist that determined that as the temperature of a gas increases, its pressure increases (don't include the hyphen!).
  12. 19. The phase change from liquid to gas.
  13. 22. The chemical compound that sublimates at average pressure and temperature on Earth. Its solid form is more commonly known as dry ice.
  14. 24. Matter in this phase has loose molecules that can move past one another, but not flow freely. They have a definite volume, but take the shape of their container.