Completing the Circuit

Type of Resource



From TeachEngineering - In the everyday electrical devices we use — calculators, remote controls and cell phones — a voltage source such as a battery is required to close the circuit and operate the device. In this hands-on activity, students use batteries, wires, small light bulbs and light bulb holders to learn the difference between an open circuit and a closed circuit, and understand that electric current only occurs in a closed circuit.

Performance Expectations

4-PS3-2   Make observations to provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents.