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TITLE
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Balloon Hovercraft
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QUESTION
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How does a hovercraft hover?
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HYPOTHESIS
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I predict that it will hover all over the table
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EQUIPMENT
AND MATERIALS:
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Bottle top lid,CD, a balloon and hot glue gun.
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PROCEDURE:
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Step 1:using a hot glue gun glue the bottle cap over the CD hole.
Step 2:Blow up a balloon. When it is fully inflated twist the end so no air comes out.
Step 3: Stretch the balloon over the end of the end of the bottle cap.
Step 4:open up the cap and place the CD on the surface.
Step 5:untwist balloon and let go.
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OBSERVATIONS/RESULTS:
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I found out that hovercraft hovered all over the table and left a track of air.
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CONCLUSION:
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The air from the balloon creates a cushion of moving air between the disc and the CD and reduces the friction across the surface.
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