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Simple Hovercraft

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Producing a hovercraft out of a balloon and an old CD to help understand energy conversion and how a hovercraft works


a CD, 1 fruit shoot plastic bottle top with sports cap, 1 balloon, blue tack


1)Remove sports cap from bottle 2) roll out blue tack into a thin sausage3) take blue tack sausage and place around the screw part of the sports cap 4) attach sports cap to shiny side of CD with cap centred over hole of the CD, ensure you seal the space between the cap and the CD with the blue tack 5) blow up the balloon, attach cap 6) to make it float pull up the sports cap and push on a flat surface


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