Words about matter and energy

Atom

A very tiny part of matter.

Nucleus

The centre of an atom.

Neutron

A particle found in nuclei. It can take part in fission.

Fission

The splitting of the nucleus of certain atoms, which releases energy.

Thermal energy

Energy linked to the microscopic movement of the parts that make up matter. We notice it when something becomes warmer.

Turbine

A machine that uses a fluid, such as water or steam, to turn a shaft.

Generator

A machine that changes the energy of movement into electrical energy.