Scientific Experiment Writing

B E G I N N I N G	TITLE	Balloon Hovercraft
	QUESTION	How does a hovercraft hover?
	HYPOTHESIS	I predict that it will work, by hovering across the table.

M I D D L E	EQUIPMENT  AND MATERIALS:	A CD a bottle cap and a balloon
	PROCEDURE:	Step 1:Glue the bottle cap over the cd hole. Step 2: Blow up the balloon. When it is fully inflated twist the end so no air comes out.  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 hovered across the table and left a trace of air.

E N D

CONCLUSION:

The air from the balloon creates a cushion of moving air between the disc and the CD and reduces the friction across the surface.