Penny and Nickel Battery

Step 6 How does this work?!?!?!

Well, its quite simple you see this is a single cell of a battery, so the zinc nickel and copper penny are called electrodes. The salt is called the electrolyte. As we know, all batteries have a "+" and a "-" terminal. Electric current is a part of current using electrons. Certain materials called conductors allow the electrons to flow through them. The two metals are good conductors, and so the current will flow from the "-" terminal through a conductor(salt mixture) to the "+" positive terminal.


If you don't get it, ask.