Across
- 6. ENERGY The transport of energy by ocean surface waves
- 7. Yellow-to-black liquid found beneath the Earth's surface used to make fuel
- 8. POWER A form of hydropower that converts the energy of tides into useful forms of power
- 9. Used for making batteries
- 10. Used for electric wiring
- 12. A colorless, odorless, tasteless, gaseous mixture of nitrogen and oxygen in the Earth's atmosphere
- 13. Energy from plants and plant-derived materials
- 15. Used to make cans
- 17. Using the sun to generte heat,light,hot water,electricity
Down
- 1. Wood used as a building material
- 2. Fuels produced from living organisms
- 3. POWER Using water to generate electricity
- 4. Using the natural sources of heat inside the Earth to produce heat or electricity
- 5. FUEL A fuel that provides nuclear energy
- 6. Using the wind to generate electricity
- 10. Dark brown to black graphite like material used as a fuel
- 11. ENERGY Energy of electromagnetic waves
- 14. Precious metal used to make coins
- 16. FUEL Fuel formed by decomposition of buried dead organisms