A tank in which water is heated until it turns to steam. The steam can be used to heat a building or run a machine. Changed from one form or use to another. This is the last stop before electricity is passed along to homes or businesses. Substations are located throughout cities to serve areas and neighborhoods.
Electricity is used to produce light, heat, power, etc.
Electricity moving in a stream, as through a wire, is called electric current. In each element, all the atoms are of the same kind. You can join different elements to make more complicated substances called compounds, but you cannot break an element into a simpler kind of substance. Chemists have found more than 100 different elements. Ninety-two of these occur naturally.