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Amazon.com: Thames & Kosmos Simple Machines Science Experiment & Model Building Kit, Introduction to Mechanical Physics, Build 26 Models to Investigate The 6 Classic Simple Machines : Everything Else
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Amazon.com: Thames & Kosmos Magnet Science Kit 665050 & Motors and Generators Science Kit 665036 Age 8+ STEM
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Amazon.com: Thames & Kosmos Remote-Control Machines: Space Explorers | Science & Engineering Stem Experiment Kit | Build 10 Real Working Models | Parents' Choice Gold Award Winner : Toys & Games
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Amazon.com: Thames & Kosmos Simple Machines Science Experiment & Model Building Kit, Introduction to Mechanical Physics, Build 26 Models to Investigate The 6 Classic Simple Machines & & Kosmos Motors & Generators :
Amazon.com: Thames & Kosmos Microcontroller : Toys & Games
Amazon.com: Thames & Kosmos Simple Machines Science Experiment & Model Building Kit, Introduction to Mechanical Physics, Build 26 Models to Investigate The 6 Classic Simple Machines : Everything Else