Drawings which are illuminated by Koa Koa

To learn while having fun, here are the Drawings which are illuminated by Koa Koa !

These two drawings, once assembled will become pretty bright posters. There is :

A police car: the headlights of the car come on when you put the batteries.
A labyrinth: same principle as the previous one however there are some whites: the circuit is broken. It must therefore be "repaired" with a pencil (the mine is graphite, a conductive material).

After the activity (about 20 minutes), we can add a piece of tape to fix the batteries, and we obtain a luminous poster for the room.

WHAT WE LEARN:

conductive / non-conductive materials
LEDs, polarity, anode, cathode
the operation of the switch