Propitiates of waves

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Across
  1. 3. What is the material a wave travels through to transport energy called?
  2. 4. What is the highest point of a transverse wave?
  3. 5. What is the low density area called in a wave?
  4. 8. What wave displays matter in the same direction the wave is traveling?
  5. 9. What is the distance from one crest to another?
  6. 10. What transfers through a wave?
Down
  1. 1. What is the high density area called in a wave?
  2. 2. What type of wave moves matter perpendicular to the direction of the wave?
  3. 6. What is the direction from the rest point to the trough called?
  4. 7. What is the lowest point of a transverse wave?