Energy Review

2. gas, Fossil fuel energy source found in underground rock layers
4. release of harmful materials into the environment
6. the energy released by the nucleus of an atom as the result of nuclear fission or nuclear fusion
11. renewable energy source that can be burned and used as a source of fuel
13. any natural resource or energy source (as wood or solar energy) that can be replenished naturally in a short period of time
14. a natural resource or energy source that cannot be reused or replaced easily (ex. gems, iron, copper, fossil fuels)
15. energy, a type of renewable energy that is generated deep within the earth

1. Process where a tube is bored into the earth’s surface to pump out oil
3. the energy produced from moving water
5. Fossil fuel created from the remains of plants that lived long ago
7. a large natural or artificial lake used as a source of water supply
8. fuels, coal, oil, natural gas, and other fuels that are ancient remains of plants and animals
9. energy, energy from the sun that is converted into thermal or electrical energy
10. Liquid made from petroleum to use as a fuel
12. energy, renewable energy source that uses wind power to generate electricity