Across
- 4. ethanol, and biodiesel
- 5. converts winds energy of motion into electricity
- 7. many wind turbines placed together
- 10. box that absorbs sun's heat
- 12. combustion of biomass
- 13. use of mirrors to focus sunlight to produce electricity
- 14. process where water molecules are broken down into O2 and H2
- 15. system that collects energy from sun
- 16. movement of water used to generate electricity
- 17. produced from wood, manure, and grain
Down
- 1. can melt rocks into magma
- 2. design a house to naturally colect the sun's energy
- 3. transfers underground heat
- 6. a cell where solar energy is converted to electricity
- 8. kinetic energy used to turn turbines
- 9. thermal ocean energy into electricty
- 11. opposite of the reaction in electrolysis