Glossary
A
Atom the smallest unit of any chemical element, consisting of a positive nucleus surrounded by negative electrons. Atoms can combine to form a molecule.
C
Coal a hard black substance, dug from the earth in lumps, which can be burnt to produce heat of power.
N
Natural gas a gas, found underground which is used as a fuel.
Neutron a part of an atom that has no electrical charge.
Nuclear being or using the power produced when the nucleus of an atom is divided or joined to another nucleus.
O
Oil smooth, thick, sticky liquid, most of which burns easily and does not dissolve in water. It is used as a fuel.
P
Plutonium a metallic element that is used esp. as a fuel in the production of nuclear power, and in nuclear weapons.
U
Uranium a heavy metal which is radioactive and is used in the production of nuclear power and some types of nuclear weapons.