States of Matter and Phase Changes

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Across
  1. 2. a source of energy that can change one state of matter to another
  2. 5. the process that transforms a liquid to a solid
  3. 8. the state of matter with the least amount of energy
  4. 10. known as the "fourth state of matter"
  5. 12. the process that transforms a gas into a solid
Down
  1. 1. how solid particles move
  2. 3. the state of matter in which the particles slide past one another
  3. 4. an example of this phase change is seen in dry ice
  4. 6. of the three main states of matter, it has the highest energy
  5. 7. a negatively charged particle in an atom
  6. 9. condensation that occurs when water vapor combines with floating particles
  7. 11. the process that transforms a solid to a liquid