Energy sources

4. Also known as petroleum – can be extracted and refined in order to make products such as gasoline, diesel and jet fuel.
5. What type of electricity bulb is mos efficient and has the longest life
7. The rate system, which determines the charge for electricity consumption.
9. Energy sources that will run out because the supply cannot replenished as fast as it is used, e.g. oil.
10. Organic matter, such as wood, crops, seaweed and animal waste. It gets its energy from the sun and can be used to produce electricity.
13. Energy is released when atoms' nuclei are fused together (fusion) or split apart (fission). Nuclear power plants produce electricity through nuclear fission.
15. Human energy units
16. Fuel made from from plants or animal waste
17. That was formed from the remains of tiny sea plants and animals that died millions of years ago. It is mainly composed of methane.
18. We put the on the roof to get energy from the sun
20. Unit of electrical power.

1. Energy that comes from the force of moving water. Hydropower plants use dams to capture water energy and convert it to electricity.
2. Energy that comes from the heat generated by the Earth, such as volcanoes or geysers. It can be used to produce electricity, and provide heat and hot water.
3. A device that generates electricity through a chemical reaction, used in electrical devices such as wall clocks, electronic thermometers, and more.
6. That can be harnessed by large blades on wind turbines, which use it to generate electricity for residential and commercial purposes.
8. The most abundant greenhouse gas
11. A flammable black hard rock, comes from the remains of plants that died hundreds of millions of years ago. It has the highest level of carbon of all fossil fuels.
12. energy sourced that will never run out (e.g solar power)
14. The main light source on Earth, a renewable energy source.
19. Electricity work powered in a given unit of time.