| A | B |
| chemical potential energy | energy stored in chemical bonds between atoms |
| fossil fuel | form from remains of ancient plants & animals |
| petroleum | flamable liquid from decay of ancient microscopic plankton and algae |
| non renewable sources | resources that cannot be replaced by natural processes as quickly as used |
| fusion | atomic nuclei combines at very high temperatures |
| fission | small mass converted into tremendous amount of thermal energy |
| nuclear reactor | energy from controlled nuclear reaction to make electricty |
| nuclear waste | radioactive material results from use |
| generator | device uses electromatic induction convert mechanical to electrical energy |