Science fair

yesterday we had our school science fair. My science investigation was about volcanoes.

Science Writing - Hovercraft

                                                                                          

Scientific Experiment Writing

How does a hovercraft hover
 HYPOTHESIS

I predict that it is going io do not wook.

Bottle lid, a balloon and a disc Step 1:Using a hot glue gun glue the battle c
Cap over the CD hole.

Step 2:Blow up a balloonn. When it is fully inflated twist the end so no air come 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.

It spinning around                                                                                                                                     THE air from the balloon creates a cushion of moving air between the disc and the CD and reduces the friction across the surface.