Fluids crystallize in the cavities of the rounded rock (nodule) creating the exciting surprise inside. Geodes are found all over the world, thes...View full details
Set of 3 Geodes. Fluids crystallize in the cavities of the rounded rock (nodule) creating the exciting surprise inside. Geodes are found all ov...View full details
Kit contains owl pellets, plastic forceps, hand magnifier and bone sorting chart. A great item for introducing the basic concepts of archeology, co...View full details
A simple form gyroscope for demonstrating the principles of rotation, attraction and equilibrium of bodies in motion. Consists of a metal gyroscop...View full details
The Orbiter boomerang combines a high tech, triangular design with a bright colored, soft rubber edge. These features make it easy to throw and see...View full details
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