Physics and energy

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Across
  1. 4. You can find them at a beach
  2. 5. how hot or cold something is
  3. 9. portion where particles are spread out
  4. 11. What you see in the mirror
  5. 12. Distance from rest point to the crest or trough
  6. 14. Temperature where all molecular motion stops
  7. 16. Portion where particles of the medium are crowded together
  8. 18. energy that is transferred between different objects at different temperatures
  9. 19. What waves travel through
  10. 21. Movement of heat or electricity by medium
  11. 22. Used to measure the frequency
  12. 23. Heat transfer through waves
  13. 24. turning a solid to a liquid
Down
  1. 1. Change of solid directly to gas
  2. 2. Causes waves to move
  3. 3. Liquid to gas at the surface of liquid
  4. 6. when a wave passes a barrier or hole and moves and spreads
  5. 7. Heat transfer through liquid or gas
  6. 8. When the reflection is bent
  7. 10. Highest point of wave
  8. 13. Lowest point
  9. 15. Turning a liquid to a solid
  10. 17. Liquid to gas phase
  11. 20. Amount of times a wave passes through a point in a certain time