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Make your own test tube racks out of plaster and learn about the chemical reaction that forms them
Only your small band of heroes stands in their way
Why do some atoms combine with each other while other atoms do not
Thames and Kosmos Nanotechnology Specs
5 different torso-fronts and 5 body variations allowing you to assemble a unique looking squad
K'nex Dragon Revenge Coaster Warhammer Make your own test tubeThink outside the blocks with this real working roller coaster that you build yourself from 578 parts, including classic sized K'NEX rods and connectors. Watch as the car dips and dives throughout the burnt out tower and thru the drawbridge, twisting and turning the whole way and back to the working chain lift, where you can begin your quest to escape the dragon all over again! This awesome roller coaster toy includes easy to follow, step by step
