Across
- 2. A machine for producing continuous power in which a wheel or rotor spin
- 5. The natural world
- 6. Material such as coal, gas, or oil that is burned to produce heat or power.
- 8. The flow of electrical power or charge
Down
- 1. The natural movement of the air, especially in the form of a current of air blowing from a particular direction.
- 3. A source of energy that is not depleted by use.
- 4. The ability to produce energy, or the energy produced
- 7. The sun's rays as source of energy from which power for domestic or industrial use may be generated.