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
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
Amazon.com: Thames & Kosmos Orbiting Solar System STEM Kit | Build a Rotating Solar System Model | Planets Revolve Using a Windup Motor | Explore Gear Ratios | Science Fairs | Difficulty
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
Amazon.com: Thames & Kosmos Magnetic Science | 33 STEM Experiments | Ages 8+ | Learn About Earth's Magnetic Poles | Discover How Invisible Magnetic Fields Work | Full-Color 48-Page Manual
Amazon.com: Thames & Kosmos | Robotics Smart Machines | Robotics for Kids 8 and up | STEM Kit builds 8 Robots | Full Color Manual to help with assembly | Requires tablet