Welcome to Procrastination Land

So this is a vaguely short introduction to galvanic cells that I thought I would tell you all about as I am trying to study. Here is a picture:

So basically what happens is to metal bars basically are places into salt solutions. On the left there is a zinc bar and on the right a copper bar. A salt bridge KNO3 joins them.
Okay so in the left half-cell is you have Zinc, this is the anode. It oxidises (losing electrons), the electrons pass through through the wire while the Zinc ions remain in the solution to create something like Zinc Sulfate depending on your salt solution.
In the right half-cell, is copper, this is your cathode, as the electrons pass into it the Cu2+ ions collect on the cathode as copper. This is the reduction (gains electrons) reaction.
A Salt bridge connects the two as the flow of electrons continues, creating electric current etc.

The reaction is called a redox reaction, where one substance is oxidised and the other is reduced. Yeh.

That's it really.
Don't worry, probs only Lasry will get it. It just makes it clearer in my head.