ELECTROMAGNETIC SPECTRUM

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Across
  1. 2. a light that is used to sterilize water
  2. 3. part of the electromagnetic spectrum that are used to broadcast radio and TV signals
  3. 6. a radiation used in oven toasters to cook food
  4. 7. satellites that orbit the Earth at the same rate as it turns
  5. 8. radiation used in security scanners found in airports because it can penetrate solid materials
Down
  1. 1. these radiation can easily pass through Earth's atmosphere and they are used for satellite TV broadcasting
  2. 3. part of the visible spectrum that has the longest wavelength
  3. 4. part of the visible spectrum that has the greatest frequency
  4. 5. a radiation that is radiating from any hot object
  5. 7. a radiation that can be used to kill cancerous cells