You Will Need: • Compact disc (an old scratched up music CD or one of the computer CDs that come free in the mail) • Thread spool or 35mm-film canister • Glue • Balloon • Smooth tabletopWhat to do: 1.
If you are using the film canister, have an adult poke a pencil-size hole in the middle of the bottom and the middle of the cap of the canister.
Measure and record the distance traveled.
Repeat this twice more.
Measure and record the distance traveled. Repeat this twice more. A fan attached to an engine generates the cushion of air. These thrusts of air are similar to the way canoers change directions by moving water around with th...
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