Across
- 1. nuclei splitting releasing energy.
- 3. energy within the nucleas of an atom.
- 5. when particles combine and release tremendous amounts of energy.
- 6. energy resources still in development
- 9. saving energy.
- 10. a device that turns mechanical energy into electrical energy.
- 12. uses suns energy to heat directly
- 16. energy taken from below earth's crust for use.
- 17. produces electricity from chemical energy.
Down
- 2. percentage of electricity that does useful work in a system.
- 4. are the remains of ancient organisms that changed into coal, oil, or gas.
- 7. energy from the sun being collected for heating.
- 8. energy in moving water harnessed.
- 11. organic matter used as fuel.
- 12. crude oil
- 13. energy sources that are constantly being formed.
- 14. oil deposits that can be extracted profitably.
- 15. experimental power stations along coast of Hawaii