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Why do paleontologists and archaeologists make molds of fossils and artifacts? You'll find out with this unusual Eyewitness Kit that explains the basics of molding and casting. The instruction and information booklet describes different kinds of molds, processes, and materials scientists use to create casts. The kit includes molding material to make a reusable seamless mold of a favorite item and enough casting medium for several creations. Adult supervision is recommended, as this is a somewhat complex and messy operation. Your child could create some unique gifts using this kit--what grandparent wouldn't love a cast of a grandchild's hand? --Marcie Bovetz