Energy

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Across
  1. 4. a material that is a poor conductor of heat
  2. 6. describes living things that release light energy
  3. 7. the highness or lowness of a sound
  4. 9. describes objects that emit light when they are hot
Down
  1. 1. a material that is a poor conductor of heat
  2. 2. emission of energy as electromagnetic waves
  3. 3. transfer of heat through the flow of
  4. 5. releasing its own light
  5. 8. describes light sent in many directions by small particles within a substance
  6. 10. describes objects that do not emit their own light, but can be seen by reflected light