Science vocab practice

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Across
  1. 3. time taken to complete a repeating phenomenon
  2. 7. polar opposites
  3. 9. a wave that moves like a snake
  4. 10. a wave cause by a electric and magnetic fields
  5. 13. a wave moveing up and down
  6. 15. number of waves passing a certain point
  7. 16. distance between crest other crest
Down
  1. 1. a disturbance
  2. 2. energy going from a wave to matter
  3. 4. wave bouncing back
  4. 5. the bending of waves
  5. 6. the distance particles move when a wave passes
  6. 8. radiation seen by the human eye
  7. 11. the bending of a wave going from on thing to another
  8. 12. device that amplifies light
  9. 14. type of galaxy