Primary 3
Topic: Electric Circuit
By: Mr. Zaldy Sambulan and Ms. Rossukon Songsarn


This week in science, our Grade 3 class explored the fascinating world of electric circuits! We began by discussing what an electric circuit is and why it’s important. An electric circuit is a complete pathway that allows electricity to flow, and it requires several components to work properly. We learned that a circuit needs a power source, such as a battery, to provide energy, conductors like wires to carry the electric current, and a load, like a light bulb, to use the electricity. We also talked about switches, which can open or close a circuit, controlling the flow of electricity.

To bring this concept to life, we conducted a hands-on experiment by creating simple circuits! Each student was given a battery, two wires, and a small light bulb. They connected the wires to each end of the battery and attached the other ends to the light bulb. When the circuit was correctly connected in a closed loop, the light bulb lit up! This helped students see firsthand that electricity flows only in a closed circuit, and any break in the connection would stop the flow of electricity.

Through this experiment, students learned that batteries provide the energy needed to push the electric current through the circuit, and that conductors allow electricity to move along the path. To extend learning at home, students can draw a simple circuit diagram or even go on a "circuit hunt" around the house, identifying everyday objects like flashlights and remote controls that work using circuits. Exploring circuits together like this can spark curiosity about how things work and help link classroom learning to everyday life. Students’ curiosity and enthusiasm are lighting up our exploration of electric circuits!