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Summary: Learn about using a water bottle sport top when building your cool and easy balloon hovercraft experiment in this free science fair video.
Scott Thompson has been teaching kids of all ages for about twenty years. He currently works for the Wisconsin Public School system teaching science and other subjects to elementary kids.read more
" Hi, this Scott Thompson from expertvillage.com, and today I am going to demonstrate a way to put those used CDs to use by building a small balloon hovercraft. We will switch to the finished one that I have made. It is real similar to the one we have been working on, only it has a—instead of a plastic pipe, I used a pop top from a water bottle. This adds one more feature to the CD hovercraft in that you can adjust the opening, how much air you wanted to escape from the balloon. And if you use something like this instead of the plastic pipe, you don’t have to use the cardboard square, so that takes out on step. Alright, we will blow it up and give it a try. "
eHow Article: Alternate Method for the Balloon Hovercraft Experiment
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Comments
neila1 said
on 8/2/2008 water bottle pop top a great control piece