This is my intro to circuits. I am making some out of cardboard and tinfoil, but they are not finished. This is one that I built using a blade switch, wires, lightbulb, and a battery. Are you wondering why circuits work…Circuits work because electrons want to get from one side of the battery to the other. But inside the battery there is a wall blocking them from moving. So when given a clear path, through wires and other conductive metals, they take the chance. One their path they move through the light bulb and light it up with their electricity. over time all of the electrons leave one side of the battery and move to the other. This is what we call a dead battery. the positive side no longer want electrons because it is so full so electrons no longer want to go there.
So know that you know why circuits work think about different way you can build them. Here are some things to remember…
The circuit must be complete, meaning the electrons have a clear path and it goes all of the way from one side of the battery to the other.
Make sure you use things that are conductive. (most metals are conductive)