Electricity and circuits both are involved in subject of science.Electricity is form of energy which we use in our daily life,For example:we use fans,lights,television and many more other appliances.But for these appliances to work we need circuits. Circuits are things which are copper wired but are covered by plastic for safety as plastic is an insulator and copper wires are good conductors of electricity.So copper is used to generate electricity from one place to another.We can see copper wires if we cut the plastic only!we should be careful when use it because copper wires can give a electric shock.electricity needs at least three simple things.1-a wire 2-a battery and 3-a load or a light bulb or any other low voltage appliances.electricity is important in our lives so are circuits!!