The flow of water in a stream was used to demonstrate that water will flow from a higher level to a lower level. In order to keep a continuous flow of water in a fountain, a pump must be used to lift the water back to a higher level. Electric charge will flow when there is a difference in electric potential from one end of a conductor to another. This flow will continue until there is no potential difference between the ends of the conductor. As long as there is a potential difference, electrons will flow (current). Conduction electrons were explained and reinforced by a short video. The measurement of flow was discussed as coulombs/sec passing a point, and the unit was called the ampere, or amp or just shown as A. 1A = 1C/s.