Dubai lit up by countless electric lightsElectricity is an extremely useful form of energy. It can easily be changed into other forms of energy, such as light, heat and sound energy. Current electricity is easy to use because it can be sent along wires to wherever it is needed.
What is electricity?
Electricity is a kind of energy stored inside atoms, the tiny building blocks of all things. Atoms themselves are made up of particles. These include electrons, which have a negative electric charge, and protons, which have a positive electric charge.
The Three Gorges Dam, a hydro-electric dam that spans the River Yangtze in Hubei province, China, is the world's largest power station.
Find the answer