Jetlag, Solar System, Square Wheeled Motorbike - S3.E3
Liz conducts an experiment into jetlag and how to avoid it, while Dallas demonstrates the size of the solar system with the help of a bicycle and a fruit bowl. And Jem upgrades his square-wheeled skateboard to a motorbike, before trying to jump it into the record books.
Jetlag, Solar System, Square Wheeled Motorbike - S3.E3
September 22, 2010
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