Greg Swanson and Joe Kelley demonstrate their superb skills at creating bottle rockets on rooftops.
To make a plastic bottle fly into the air, you will need a cork, a inflation needle, a bicycle tire pump, and of course... a 2-liter plastic bottle filled with a little bit of water. Let's not forget you need some strength for this science experiment also. See it all go down, or up, in the video.
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