Energy

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Across
  1. 3. The widened part of a longitudinal wave
  2. 5. Needs a medium to travel
  3. 7. The compressed part of a longitudinal wave
  4. 9. The top part of a transverse wave
  5. 10. What makes things move
Down
  1. 1. Can travel without a medium
  2. 2. Moves up and down
  3. 4. What energy travels in
  4. 6. Goes back and forth
  5. 8. The bottom part of a transverse wave