Balloon Hovercraft

B E G I N N I N G	TITLE	Balloon Hovercraft
	QUESTION	How does a hovercraft hover?
	HYPOTHESIS	I predict that it’s going to move.

M I D D L E	EQUIPMENT  AND MATERIALS:	You need a dvd, bottle cap and a balloon.
	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 over.  The end of the bottle cap. Step 3: Stretch the balloon over 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.
	OBSERVATIONS/RESULTS:	It hoved across on the table like a lawnmower.

E N D

CONCLUSION:

The air from the balloon creates a cushion of moving air between the disc and the CD and reduced the friction so the disc moved freely across the table.