Energy sources and forms of energy

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Across
  1. 2. A torch gives us __________ energy.
  2. 4. It's the most important source of energy.
  3. 5. A burning fire produces _________ energy.
  4. 7. It's an example of a fossil fuel.
  5. 8. This energy source makes sail boats move.
Down
  1. 1. A rubber band has ___________ energy.
  2. 3. Solar _________ generate electricity.
  3. 6. A radio produces ___________ energy.