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Across
  1. 3. A natural resource or form of energy that can be used repeatedly and will not run out (e.g., solar, wind, hydro).
  2. 4. The ability to do work or cause change. It exists in many forms, such as heat, light, motion, and electricity.
  3. 6. A material that does not allow heat or electricity to flow through it easily (e.g., rubber, plastic, or wood).
  4. 7. Producing light as a result of being heated (e.g., a traditional light bulb with a glowing filament).
  5. 9. The passing of energy through a material (e.g., light passing through glass).
Down
  1. 1. The transfer of energy through waves or particles, especially as heat or light (e.g., sunlight warming your skin).
  2. 2. When energy (such as light or sound) bounces off a surface (e.g., a mirror reflects light).
  3. 5. Describes objects that produce their own light (e.g., the sun, a light bulb).
  4. 8. When energy (such as light or heat) is taken in by a material (e.g., a black shirt absorbs more heat than a white one).
  5. 10. Energy from the sun that can be used to produce heat or electricity.