Across
- 4. a power plant that uses wind turbines to generate electricity
- 6. a metal box that absorbs the sun's energy to heat water or air
- 11. the process of changing the solar energy stored in the ocean to electric power
- 13. the energy produced from organic materials (e.g. plants and human waste)
- 14. fuel from recently living organic sources
- 15. a device that converts hydrogen or another fuel into electricity
- 17. using the design of a building (versus technology) to collect, store, and distribute the sun's energy
Down
- 1. a type of renewable energy that is generated deep within the earth; produced by the breakdown of radioactive elements and high pressure together
- 2. a network of pipes that circulates water from the ground (for heating) and back into the ground (for cooling)
- 3. electricity generated from the energy of moving water
- 5. a device that converts solar energy directly into electricity
- 7. the use of technology to collect, store, and distribute the sun's energy
- 8. electricity generated by the combustion of organic materials
- 9. electricity generated from the movement of the tides
- 10. a device that converts the wind's kinetic energy into electrical energy
- 12. a process that releases hydrogen by using an electric current to break down water molecules
- 16. a technology that uses the heat of the sun to generate electricity; mirrors focus the sun's energy, which is used to heat the water that fuels electric power plants