Replacement Sand, set is a refill of the sand included with the Tectonics model. Set includes one pound each of beige, black, blue, orange and yellow sand
Magnetic Earth Field Model, Use it as is or place it on an overhead projector to show the whole class, Iron filings are suspended in oil to allow the included magnet to align them to its field
Wiggle-Bots - Doodling, Scribbling, Drawing, Racing Bots, motorized contraptions that are designed and built by kids, widen as wires are connected and Wiggle-Bots start to move, understanding and design through experimentation
Wiggle-Bots single- Doodling, Scribbling, Drawing, Racing Bots, motorized contraptions that are designed and built by kids, widen as wires are connected and Wiggle-Bots start to move, understanding and design experimentation
Super Wiggle-Bots - Doodling, Scribbling, Drawing, Racing Bots, Single, motorized contraptions designed and built by kids, widen as wires are connected and Wiggle-Bots start to move, understanding design through experimentation
Super Wiggle-Bots - Doodling, Scribbling, Drawing, Racing Bots, motorized contraptions that are designed and built by kids, widen as wires are connected and Wiggle-Bots start to move, understanding and design through experimentation