A measurement of the amount of electric current.

The smallest unit of matter. Scientists so far have found 112 different kinds of atoms. Everything in the world is made of different combinations of these atoms.

Organic materials, such as wood by-products and agricultural wastes, that can be burned to produce energy or converted into a gas and used for fuel.

A colorless, odorless, nonpoisonous gas that is a normal part of the air we breathe. Carbon dioxide is exhaled by humans and animals, and is absorbed by green growing things and by the sea.

A circular path in which electricity travels.

Something that allows electricity to flow through it easily. Water and most metals are good conductors. Conductors can allow electricity to flow through them because the electrons in their atoms move [..]

The movement or flow of electricity.

Power lines that carry electricity through towns and neighborhoods to homes and businesses. Distribution lines can run overhead or underground.

The flow of electrons.

The basic particle that orbits the nucleus of an atom. The flow of electrons produces electricity.