WAVELENGTH

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Across
  1. 2. the smallest wave
  2. 7. the range of sizes and speeds
  3. 8. the only light a human can see
Down
  1. 1. allows you to listen tou your favorite radio station
  2. 3. used for heating food
  3. 4. used in remote controls
  4. 5. can cause sun burn
  5. 6. used to view the skeletal system