nerdi
Circuit City
The power is out all over the city. On each block, drag wires between sockets and add batteries, switches, lamps, motors and buzzers to build a working circuit. Glowing dots show the current flowing, lamps really get dimmer or brighter, and a short circuit trips the breaker with a zap. Eighteen puzzles across four districts go from a first loop to series and parallel, conductors and insulators, and switch logic, plus a free-build workshop.
ages 9–12 · about 30 min
What you'll learn
- A circuit needs a complete loop, and a switch opens or closes it
- Series and parallel wiring, and why lamps get dimmer or stay bright
- Short circuits, conductors and insulators
- More batteries give more push (voltage), a resistor slows the flow
- AND, OR and two-way switch logic