Natural Resources
Across
- 2. The use of a windmill to drive an electric generator
- 3. A mixture of gasoline and alcohol
- 5. A substance that provides energy as the result of a chemical change
- 9. The percentage of the input work that is converted to output work
- 12. Energy from steam or hot water produced from hot or molten underground rocks.
- 14. Material that is not found in nature, such as glass, concrete, and plastic. Made from natural resources.
- 15. the practice of finding ways to use less energy or to use energy more efficiently
- 16. fuel made from living things
- 17. electric or motive power generated by a nuclear reactor.
- 18. A fossil fuel in the gaseous state
Down
- 1. Power generated from moving water.
- 4. energy from the sun
- 6. Compounds composed of only carbon and hydrogen
- 7. A liquid fossil fuel formed from marine organisms that is burned to obtain energy and used in the manufacture of plastics.
- 8. Another name for oil
- 10. Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
- 11. Compounds that are made from oil
- 13. A factory in which crude oil is heated and separated into fuels and other products