Across
- 1. can be used to power cars, homes, etc.
- 4. a naturally occurring liquid found beneath the earth's surface that can be refined into fuel.
- 7. resources that can be used up over time.
- 8. relating to or denoting energy derived from the sun's rays.
- 10. a thing with blades that spins connected to a generator.
Down
- 2. can convert the renewable energy in various forms to electrical energy.
- 3. a combustible black or dark brown rock, found mainly in underground deposits and widely used as fuel.
- 5. a flow of electrical power or charge.
- 6. resources that never run out
- 9. material such as coal, gas, or oil that is burned to produce heat or power.