Water turns to steam when it is heated to the boiling point. A group of things or parts working together or connected in some way so as to form a whole. The pressure of steam, water, or air against the vanes causes the shaft to turn. This metal is one of the heaviest of all known elements. It was named after the planet Uranus.
Uranium gives off radioactivity.
As it loses atomic particles, it decays and ends up, after millions of years, as lead. People working with uranium often need protective clothing to shield their bodies from radiation damage. Uranium is the fuel used to make nuclear energy in atomic bombs and nuclear power plants. It is mined in many countries. The force that causes an electric current to flow through a circuit.