Across
- 3. Alternative to fossil fuels
- 5. A rotating machine that collects energy from the wind
- 9. Liquid fuels from biomass sources
- 11. Uses water to generate electricity
- 12. Energy from the natural movement of water
- 14. Energy found deep beneath the surface
- 16. One type of solar panel that uses black metal to heat things
Down
- 1. Electricity generated from the burning of biomass
- 2. Heating system that uses the temperature underground
- 4. Method of producing hydrogen
- 6. A type of solar power that uses mirrors
- 7. An energy capturing method that uses solar panels
- 8. A group of wind turbines
- 9. Energy produced from living organisms
- 10. A type of solar heating that naturally collects and stores heat
- 13. One type of solar panel that uses electrons
- 15. Method of using hydrogen to produce water