Radiation Crossword Puzzle

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Across
  1. 5. the transfer of heat through electromagnetic waves
  2. 6. heat in wave energy from a warmer body to cooler body
Down
  1. 1. used for remote sensing and communication
  2. 2. the most powerful form of radiation (related to the Hulk)
  3. 3. an example of radiation known for having a relation to camping
  4. 4. long waves are heat waves
  5. 7. absorb heat more than lighter objects