Renewable Energy Crossword

Across
1. Solar thermal systems collect and transform radiant energy from the sun into high-temperature thermal energy which can be converted into electricity
3. complex organic matter processed for fuel for vehicles
4. use solar energy to create electrical power
6. energy produced from heat inside of the earth’s crust to produce energy
9. energy derived from present day photosynthesis
11. use hydrogen gas for energy
12. An array of sun tracking mirrors
13. concentrated solar power system with long reflectors that face the sun
14. arrays of wind turbines
15. use wind power to create energy
Down
2. air moves by passive convection
5. collects solar energy to heat water
7. A dam is built across a river to create a reservoir
8. Energy sources that will not be depleted by use
9. fuel created from vegetable oil
10. Use the earth as an insulator