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Build this Strandbeest kit yourself. It has a very interesting mechanism where blowing into the fan makes the animal start walking against the wind...

Learn all about microscope slides, how to make them, how to view them, and how to collect samples for your slides. This kit includes a clearly writ...

Have the world at your fingertips for endless journeys of fun and learning! 2-piece construction with a sturdy, child-friendly smoke black plasti...