Energy

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