Energy

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Across
  1. 3. Potential energy stored in rubber bands etc.
  2. 5. Sometimes known as thermal energy
  3. 6. The energy of movement
  4. 7. Used to power most appliances
  5. 8. Produced by anything which makes noise
  6. 9. Produced by the sun
Down
  1. 1. Used as a source of power, but also for atomic bombs
  2. 2. Potential energy stored when an object has height
  3. 4. Potential energy held within bonds