Across
- 3. Energy sources which can be used over and over again without running out.
- 6. Materials from the Earth that are used to support life and meet people's needs.
- 9. The power generated by falling water.
- 10. A natural resource that is limited but abundant in nature.
- 11. A way to describe the use of power or the ability to do work
Down
- 1. Energy that can be extracted from earth's internal heat.
- 2. An energy from fossil fuel which is odorless and colorless in its natural state which is primarily made of methane.
- 4. A fuel, such as coal, oil, or natural gas, formed in the earth from plant and animal remains over millions of years.
- 5. Anything that dirties the Earth.
- 6. An energy resource that does not produce carbon dioxide but it does produce radioactive waste.
- 7. is a solid, black material that contains a large amount of carbon-based material used to produce energy.
- 8. Energy that comes from the sun.