Electricity
Overview
Electricity is the flow of electrons. It can be captured in certain liquids and solids.
Power Source
The power source of a circuit supplies electrons and when the electrons are finished it takes the back.
Resistors
Resistors diffuse some of the electric and may have a proper function like a light bulb or a fan. Anything that consumes electricity and gives less back is a resistor. Always have a resistor in your circuits. It there is no resistance the current is 100%. Also, the resistor needs to be big enough.