Across
- 5. a machine for producing continuous power in which a wheel or rotor, typically fitted with vanes, is made to revolve by a fast-moving flow of water, steam, gas, air, or other fluid.
- 7. Non Renewable energy source formed from plant and animal matter
- 9. Energy produced by flowing water that turns turbines to generate electricity
- 10. A type of alcohol that can be used as fuel
- 14. Tiny grains of crystals that are building blocks of rocks
- 17. Energy made by atoms colliding with each other in the center of the sun
- 19. organic matter used as a fuel, especially in a power station for the generation of electricity
- 20. a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid)
Down
- 1. A colourless, transparent, odourless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms
- 2. A gas from the atmosphere that can absorb heat
- 3. A viscous liquid derived from petroleum, especially for use as a fuel
- 4. A place where energy is converted to electricity
- 6. Energy produced using the tides to drive turbines in the water
- 8. Energy that comes from heat beneath the Earth's Surface
- 11. Converts the energy from the movement of a turbine
- 12. Converts sunlight into electrical energy
- 13. A large group of wind turbines in the same location
- 15. the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen
- 16. Cars that use a mix of petrol and electricity
- 18. A fossil fuel found underground