vocabulary waves

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Across
  1. 6. does not need a medium to travel thru
  2. 8. the distance between the normal Medline and a high low
  3. 9. the low point of a wave
  4. 10. distance a wave has traveled before beginning a new cycle
  5. 11. substance a wave travels thru
Down
  1. 1. has to travel thru a median
  2. 2. the high point of a wave
  3. 3. something carries energy from one place to another
  4. 4. moves perpendicular to the direction of the wave
  5. 5. number of waves that pass thru a given point in a set amount of time
  6. 7. moves parallel to the direction of the wave