| A | B |
|---|
| fuel | substance that provides energy as the result of a chemical change |
| energy transformation | a change from one form of energy to another |
| combustion | the process of burning a fuel |
| fossil fuel | an energy-rich substance formed from the remains of organisms |
| hydrocarbon | an energy-rich chemical compound that contains carbon and hydrogen atoms |
| petroleum | liquid fossil fuel:oil |
| refinery | a factory in which crude oil is heated and separated into fuels and other products |
| petrochemical | a compound made from oil |
| solar energy | energy from the sun |
| hydroelectric power | electricity produced using the energy from water |
| biomass fuel | fuel made from living things |
| gasohol | a mixture of gasoline and alcohol |
| geothermal energy | the heating of underground water by magma |
| nucleus | the central core of an atom that contains the protons and neutrons |
| nuclear fission | the splitting of an atom's nucleus into two smaller muclei and neutrons |
| reactor vessel | the part of a nuclear reactor where nuclear fission occurs |
| fuel rod | a uranium rod that undergoes fission in a nuclear reactor |
| control rod | a cadmium rod used in a nuclear fission in a nuclear reactor to absorb neutrons from fission reactions |
| meltdown | a dangerous condition in which fuel rods inside a nuclear reactor melt |
| nuclear fusion | the combining of two atomic nuclei to produce a single larger nucleus and much energy |
