Energy Sources

12345678910111213
Across
  1. 3. Is a solid fossil fuel
  2. 4. Unit for energy
  3. 6. Holds heat in the earth's atmosphere, keeping the earth warm.
  4. 8. Spins to turn a generator and create electrical current
  5. 9. Produced by wind turbines
  6. 10. will never run out
  7. 11. Fossil fuels are good at balancing supply and demand because you can ...... them and burn them when needed
  8. 12. produce greenhouse gases as they are burnt
Down
  1. 1. greenhouse gas produced by combustion
  2. 2. Unit for power, used to measure the energy produced in powerstations
  3. 5. Nuclear energy, coal, oil and gas are all ...........
  4. 7. Energy sources like solar and wind that are not always available
  5. 13. A limitation of ....... energy is that it is only available when the sun shines