Heat Transfer - Radiation

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Across
  1. 3. A black surface is a good __________ of heat radiation
  2. 5. Shiny surfaces __________ heat radiation
  3. 6. Surfaces that are dark and __________ absorb radiation well
  4. 7. A shiny material is a poor __________ of radiation
  5. 8. The darker the object, the __________ radiation it absorbs
Down
  1. 1. Heat radiation travels as __________ waves
  2. 2. Radiation does not need these to travel
  3. 4. The Sun gives us heat by this method