This activity will show students how electrons flow through a current and create light in a closed circuit. Electrons are attracted to the positive end of the battery and flow to the other end of the battery (negative charge) and are repelled through, thus creating light through a current. This also teaches kids to create a series verses a parallel circuit. I can introduce a circuit concept with the electron rod that creates light and sound with a closed circuit, and stops when the circuit is open, or broken, again. The one part I can see them struggling with is making sure it’s all connected and there is no one part that isn’t working. Also making sure everything is connected properly could be difficult for a younger student .We could add different types of lights for fun, like we added Christmas lights instead of a simple light bulb (which was done in the demo).
In an electrical current, the movement is of negative electrical charges, or electrons, through a conductor (electrical wire, foil, etc). In an electrical circuit, the current flows from the point where the electrical potential is the highest to the point where it is the lowest. An electrical circuit is the complete loop through which an electrical current flows. It is made up of a series of electrical components and conductors such as batteries and light bulbs. The current flows in an electrical circuit when the path is completely closed, forming a loop.