Add all that up each month and it's enough to buy yourself something you've been bugging your parents for or maybe a nice present for your way-cool sister, who you should listen to more often. All matter is made up of atoms, and all atoms have electrons in them. Some kinds of atoms have electrons that are loosely attached, and they can easily be made to move from one atom to another. When electrons move among the atoms of matter, a current of electricity is created. A battery produces and stores up electrical energy.
Electric current is generated when chemicals react with each other.
A flashlight battery is a good example. Inside a little can made of zinc is a carbon rod. The ammonium chloride causes the carbon and zinc to react. Their electrons start moving around. When this happens, an electric current is produced.