em radiation

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Across
  1. 3. the basic building block of radio communications
  2. 5. what is a penetrating form of high-energy electromagnetic radiation.
  3. 6. these waves are given off when theses things happened "a light bulb, a crackling fire"
Down
  1. 1. form of electromagnetic radiatio
  2. 2. These rays are used to tell if you have a broken bone.
  3. 4. this is used for thermal imaging cameras, remote controls, fiber optic cables, infrared astronomy, and meteorology