Photo 1 of Thames & Kosmos Roller Coaster Engineering STEM Kit | Design, Build, Experiment w/ Working Roller Coaster Models | Explore Physics, Forces, Motion, Energy, Velocity & More | Solve Building Challenges

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Photo 1 of Thames & Kosmos Roller Coaster Engineering STEM Kit | Design, Build, Experiment w/ Working Roller Coaster Models | Explore Physics, Forces, Motion, Energy, Velocity & More | Solve Building Challenges