Rocket flips the lamp switch. Click, light. Click, dark.
"How does a tiny click reach the bulb?" he asks.
Raven looks at the wall switch. "What do you notice behind it?"
Nova glows a hidden path in the wall. "Follow the loop."
A light switch sits on a wall or on a lamp.
Wires hide inside the wall and the cord.
The wires make a path from the power to the bulb.
The switch sits in that path.
| Part | What it does |
|---|---|
| Switch | Closes the path or opens a gap in it. |
| Wires | Carry the electricity. They hide in walls and cords. |
| Bulb | Turns electricity into light. |
| Power | Pushes the electricity. A battery or the wall. |
Electricity in the wall is strong. It can hurt you.
This week you look at wall switches. You do not open them.
Our hands-on machine is a flashlight with small batteries.
| Sentence | True or false? |
|---|---|
| Wires carry electricity to the bulb. | ? |
| It is safe to poke an outlet. | ? |
| The switch sits in the path to the bulb. | ? |
| A grown-up flips the wall switch. | ? |
You met the switch and learned the safety rules!
Tomorrow, we learn about the loop.