| A | B |
| fossil fuel | energy sources gotten from dead plants and animals that lived millions of years ago |
| coal | a fossil fuel made from deap swamp plants |
| oil | a liquid fossil fuel used for transportation and to make plastics; made from dead sea creatures |
| natural gas | a fossil fuel used for clean in heat homes and buildings |
| nuclear fission | SPLITS atoms of uranium to create heat |
| shale | a rock containing oil |
| nonrenewable | a natural resource which CANNOT be replaced or can only be replaced very slowly |
| boiler | a container used to turn water into steam |
| petroleum | another name for crude oil and natural gas |
| refinery | a factory that seperates oil into many fuels and products |