Ryan CH.4

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Across
  1. 3. Number a waves that pass in a minute
  2. 6. Energy transfer
  3. 8. A physical substance
  4. 9. The unit of frequency
  5. 11. Highest part of wave
  6. 13. Moves energy
  7. 14. The waves height from resting point to peak
  8. 15. Area where and object is
  9. 16. A set of related ideas
  10. 17. Pushing or pulling upon a object
  11. 20. The bending of light or other waves
Down
  1. 1. A source of illumination
  2. 2. An image seen in a mirror or shiny surface
  3. 4. Pressing or squeezing something
  4. 5. A idea of how something works
  5. 7. A form of electromagnetic radiation
  6. 10. Energy or particles from source that travel
  7. 12. Distance between waves
  8. 18. Lowest point of a wave
  9. 19. The ability to work