Wikijunior:Big Book of Fun Science Experiments/Simple switch

< Wikijunior:Big Book of Fun Science Experiments

To make a simple switch you will need:

a battery
a bulb in a bulb holder
a small block of wood
2 brass pins
a paperclip
3 wires with "alligator" clips.

Build Your Switch

‎

Measure your paperclip, then subtract 1/4 inch from its length.

Shove the pins in the wood that far apart, making sure one of the pins goes through the paperclip.

Wire Up!

Run a wire from one terminal of the battery to one pin on the switch.

Run another wire from the other pin to the bulb.

Run the third wire from the other terminal of the bulb to the second terminal of the battery.

Have Fun!

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