A Cartesian diver to make sink and swim. Explore properties of air and water while having fun. Make the diver and attach the “squid-looking” device...View full details
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
32 pages containing illustrations and name identifications on every page. Reinforcing the alphabet becomes fun when lions and tigers and bears...&a...View full details
Let the diver sink to the bottom and retrieve it with this Cartesian diver hook. WARNING: CHOKING HAZARD - This item contains small parts. Not ...View full details
Kits contain owl pellets, plastic forceps, hand magnifier and bone sorting chart. A great item for introducing the basic concepts of archeology, co...View full details
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