Across
- 2. liquid form of fossil fuel
- 5. nuclear _______ is the unusable, radioactive material that is leftover after a nuclear reaction
- 7. solid form of fossil fuel
- 10. ________ is a form of electricity where flowing water is used to make electricity
- 12. ______ fuels are the remnants of life that died millions of years ago
- 14. ________ solar energy uses the sun for energy without a solar cell
Down
- 1. releases energy by forcing two atomic nuclei to melt together
- 2. a ______ cell is another word for a solar cell
- 3. a nuclear ________ is where nuclear energy is converted into electrical energy
- 4. ______ energy uses heat from inside the Earth to make electricity
- 6. the carrying _________ is the greatest population that an ecosystem can sustain
- 8. _____ resources cannot be easily replenished
- 9. releases energy by splitting atomic nuclei
- 11. sulfur ______ combines with moisture in the air to form acid rain
- 13. rising ______ turning a turbine is how electricity is made at most power plants