Jumbo Archimedes Screw

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Introduce the concept of cause and effect the hands-on way with this sturdy, child-friendly Archimedes Screw! Screw can be used with water, soil, sand and other small solids. Encou rages observation skills as young learners watch liquids and small solids defy gravity and work their way up the screw instead of down! Ideally sized for little hands. Show more