* Batteries store chemical energy. This energy is stored in the form of chemical compounds within the battery.
* Chemical reactions within the battery create a difference in electrical potential (voltage). One terminal (the positive terminal) has a higher potential than the other (the negative terminal).
* When a circuit is connected to the battery terminals, the voltage difference creates an electric field. This field pushes charged particles (electrons) through the circuit.
* The flow of these charged particles is what we call electric current.
In short: The battery provides the driving force (voltage) that causes the flow of electrons (current) when a circuit is connected.
Here's a helpful analogy: Imagine a water tank with a hole at the bottom. The water in the tank represents the stored chemical energy in the battery. The height difference between the water level and the hole represents the voltage. When you open the hole, water flows out, just like electrons flow through a circuit when connected to a battery.
