Radiation Crossword

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Across
  1. 3. What waves travel through space
  2. 6. What is radius in Latin
  3. 7. what wave is used for remote sensing
Down
  1. 1. What form of radiation transfers heat
  2. 2. transfer of heat through
  3. 4. ---- objects absorb more light
  4. 5. What roasts marshmallows