SCIENCE

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Across
  1. 1. time taken to complete one cycle
  2. 6. crest to crest peak to peak
  3. 9. bright
  4. 11. definite direction
  5. 13. a device
  6. 14. bending of waves
Down
  1. 2. bending
  2. 3. right angle wave
  3. 4. disturbance by electric/magnetic fields
  4. 5. transfer of energy
  5. 7. number of waves
  6. 8. side to side
  7. 10. bounce
  8. 12. height of wave