| A | B |
|---|
| Biomass | Burning wood and animal droppings |
| Generators | Convert motion into electricity |
| Hydroelelctric | Water turns the turbines, creating electricity |
| Windmills | Wind turns the turbines, creating electricity |
| Geothermal | Hot rocks deep underground heat up water and turn it into steam |
| Solar Cells | Harness the sun's energy |
| Nuclear Reactors | Heat from nuclear fission turns water into steam |
| Fossil Fuels | Highly flammable material whose heat can be used for energy |
| Fuel Cells | Convert hydrogen and oxygen into water to produce electricity |
