It's invisible, everywhere, and we need it to survive. We're talking about air and according to "Science Guy" Jason Lindsey with Hooked on Science you can use a few items from around the house to create air cannon, which will prove air is everywhere. Go to http://www.hookedonscience.org for this experiment and others that might get you "Hooked on Science." Go to http://www.facebook.com/pages/Hooked-on-Science/149765858410439 to become a fan of Hooked on Science on Facebook.
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