CROSSWORD PUZZLE

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Across
  1. 4. rays carry the highest amount of energy
  2. 6. all x-rays are dangerous because they can damage healthy living ____ of the body
  3. 7. sometimes called "heat rays"
  4. 10. most ____ waves are invisible to the eye but detectable
  5. 11. microwaves can penetrate the atmosphere of the _____
  6. 13. infrared and UV rays lie at the end of the ______ spectrum
  7. 14. the colour with the longest wavelength in the visible spectrum
Down
  1. 1. UV _____ carries more energy than the others
  2. 2. property that spells the difference between infrared and UV radiation
  3. 3. the acronym of ranging detection radio
  4. 5. UV radiation is used for _____ water
  5. 8. most EM waves are invisible to the eye but ______
  6. 9. type of EM waves used in radars
  7. 12. electric field and magnetic ____ produce electromagnetic wave