Energy

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Across
  1. 5. The flow of electrons produces this type of energy.
  2. 7. The main way of heating homes before central heating.
  3. 9. Another word for oil.
  4. 10. These turn the energy in sunlight into electricity.
  5. 12. This power comes from the pressure or movement of a liquid.
  6. 13. Almost all the energy we use comes from this.
Down
  1. 1. This heat comes from the earth itself.
  2. 2. An electrical ......... such as a refrigerator or a microwave in your kitchen is very useful.
  3. 3. High …………….. electricity transmission network was created to transport electricity over long distance.
  4. 4. ……………. was the dominant fuel in industry and electrical power stations, in houses and businesses.
  5. 6. The ………. effect is a process through which heat is trapped near earth’s surface by substances such as carbon dioxide(CO2) and methane(CH4).
  6. 8. This phenomenon is associated with electric current.
  7. 11. The reactor in nuclear power stations contains a nuclear fuel such as ………………….