Across
- 3. when the nuclei of atoms split and release energy
- 4. nuclear energy uses ___ to turn turbines
- 6. Heat, time and pressure are needed to form what fossil fuel
- 7. oil is another name for ____
- 11. oil deposits that can be extracted profitably at current prices are called ___
- 12. what type of country uses the most energy
- 14. what part of an atom is split during fission
Down
- 1. a machine that converts mechanical energy into electrical energy
- 2. one disadvantage of nuclear energy is that it produces hazardous ____
- 3. ancient remains of once living organisms
- 5. a wheel that changes the moving force of air or liquid
- 8. the release of sulfur in the atmosphere can lead to ____ rain
- 9. the most abundant fossil fuel in the world is ___
- 10. nuclear power uses ___ for fuel
- 13. the most common use of fossil fuels is to make ______