A simple electric circuit
A closed path lets electric current flow through a device.

Picture in words: 1. Energy source: A battery transfers stored chemical energy into electrical energy.
2. Closed path: Connected wires and components make a complete circuit.
3. Useful change: A lamp changes electrical energy into light and heat.
4. Switch: Opening a switch breaks the path and stops the current in this simple circuit.

One more wonder: Energy is transferred around the circuit; the wire is not used up like fuel.
This is a picture activity. Never put objects into sockets or open electrical appliances.

Question: What happens when the switch opens?
Answer: The path breaks

Sources:
EIA Energy Kids: forms of energy — https://www.eia.gov/kids/what-is-energy/forms-of-energy.php

Reviewed 28 September 2026. Simplified educational illustration, not to scale.
https://atherverse.com/kids/how-things-work/electricity/