Light switch

A light switch is a kind of button that helps you turn on or off the lights in a room. When you press it one way, the connection between the wires in the switch gets closed, and electricity can flow through the wires and light up the bulb. When you press it the other way, the connection between the wires gets opened, and electricity can't flow anymore, so the light turns off. Think of it like a door that opens and closes for the electricity! So, every time you want to turn your light on or off, you just need to press the switch up or down like a button. And that's how you control the light in a room!