Physical science period 2 7th grade math

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Across
  1. 2. Invisible to the human eye
  2. 5. Change of direction of a wave.
  3. 7. A push or pull.
  4. 9. The rate at which something moves.
  5. 11. Top of a wave
  6. 12. Object changes direction over time.
Down
  1. 1. The spread of waves around obstacles
  2. 3. The distance moved by a point such as a spring.
  3. 4. Transmits energy to one place to another.
  4. 6. The amount of time a repeating event happens.
  5. 8. The transfer of energy of the wave to matter.
  6. 10. Change in velocity.