Scientific Experiment Writing
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TITLE
Balloon Hovercraft
QUESTION
How does a hovercraft hover?
HYPOTHESIS
I predict that the hovercraft will float up.
EQUIPMENT AND MATERIALS:
Cd, balloon, bottle cap.
PROCEDURE:
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 bottle lid.
Step 4: Open the cap and place the CD on the table.
Step 5: Untwist the balloon & let go.
OBSERVATIONS/RESULTS:
I found out that the air from the balloon creates a path of air.
CONCLUSION:
The air from the balloon creates a cushion of moving air between the disc and the surface. The air lifts the CD and reduces the friction which allows the CD to hover across the surface.