Science Secrets · Drawing 33 of 40
A Little Click, Then Light
Everyday Inventions
Batteries give this flashlight its energy. Inside, the switch joins or breaks a path for electricity, called a circuit. When electricity flows, the flashlight shines. The sock cannot hide any longer!
Did you know?
When the flashlight is off, no electricity flows through the circuit.
Look together
Where is the switch that turns this flashlight on and off?
An idea to try
With an adult, observe a closed flashlight. Compare two switch positions without looking directly into its light.
For the adult reading along
A little more to discover
The batteries and circuit remain inside the closed compartment. The switch controls a complete electrical path. The lines outline the illuminated area. The flashlight lens faces the sock under the bed. The hiding sock adds a little humour.
Sources and illustration notes (1)
Simplified scene and shapes. Models, imagined comparisons and enlargements do not preserve all real measurements.
These links lead to other websites. Explore them with an adult. References identify the institution and the related lesson; some linked pages are in French.
- Science World: Build a CircuitA complete circuit is an uninterrupted path for electrons to flow from an energy source, such as a battery, through a device and back to the source; breaking the path stops the flow.
Page prepared on October 13, 2026. Illustrations are simplified for colouring.
This drawing is from the book Science Secrets to Colour
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