Scintific writing

                                                                                          

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 not fly up.

M I D D L E	EQUIPMENT  AND MATERIALS:	Water bottle cap CD Balloon
	PROCEDURE:	Step 1:using a hot glue gun, 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 end. Place the CD on the surface.  Step 5: untwist balloon and let go.
	OBSERVATIONS/RESULTS:	The CD moved around the table. The balloon lost all its air.

E N D

CONCLUSION:

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