Across
- 2. A form of energy that use the sun light to produce electricity
- 4. Non-renewable combustible which humans extract through mining and drilling
- 6. A process that traps the sun's warmth in a planet's lower atmosphere
- 7. A device that converts mechanical energy into electrical power
- 11. An assembly of photo-voltaic cells mounted in a framework and using the light to produce electricity
- 13. A black and non-renewable solid combustible
- 14. A black and non-renewable viscous combustible
- 16. A non-renewable and solid combustible that is used to produce electricity from the fission reaction
- 17. A device that converts the wind's kinetic energy into electrical energy
- 18. A form of energy that provides power to motors and devices that create light or heat
- 20. An overflow of a large amount of water beyond its normal limits
- 22. outage A loss of the electrical power network in a city or a neighborhood
Down
- 1. A form of energy that use the fission reaction to produce electricity
- 3. A structure that uses concentrated solar power to produce high temperatures
- 5. The wide part of a river at the place where it joins the sea
- 8. A rotary mechanical device that extracts energy from a fluid flow and converts it into useful work
- 9. A non-renewable combustible that is neither solid nor liquid
- 10. A form of energy that comes from the movement of the rise and fall of the sea that happens twice every day
- 11. Phase of the water that may occur due to boiling
- 12. A form of energy that produces electricity from the potential energy of moving water
- 15. Electromagnetic radiation which is emitted by the sun
- 19. A form of energy which is produced from the natural movement of the air
- 21. A structure built across a stream, a river, or an estuary to retain water