Across
- 4. liquid fuels from biomass sources
- 6. water molecules are broken down into oxygen gas
- 7. energy that naturally uses the sun for heat
- 10. energy using water to generate electricity
- 13. energy using technology to collect the sun for heat
- 14. technology that uses mirrors to focus sunlight in order to generate electricity
Down
- 1. energy that is produced from this material
- 2. takes advantage of the fact that the temperature of soil a few feet underground
- 3. hydrogen gas can be used to produce electricity
- 5. we use the kinetic energy of moving water to turn turbines and generate electricity
- 8. most often built in groups
- 9. a device that converts the winds kinetic energy
- 11. solar energy is converted directly into electricity
- 12. energy that heats rocks below earths surface