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        4-8

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        Wind Tunnel Model: Blown Away

        Nathanial loves auto racing. One thing that he's learned about the sport is that most race cars are tested in wind tunnels, so he made one for his science fair project! Then he put a bunch of car models in it to see how aerodynamic they were. He asked: Which vehicle shape is the most aerodynamic?

        http://pbskids.org/dragonflytv/

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