Balloon Hovercraft How does a hovercraft hover? I predict that it would work Cd water bottle cap hot glue balloon Step 1:using the hot glue gun glue the bottle cap to the CD hole.
Step 2: blow up the balloon when it is fully inflated.
Step 3: twisted the balloon bottom so no air can come out stretch the balloon bottom over the bottle lid
Step 4: open the bottle lid and place the CD on a table.
Step 5: untwist the balloon and let go
When I saw It It worked!! The air from the balloon creates a cushion of moving air between the disc and the CD and reduces friction across the surface
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