Thames & Kosmos

How cool is it that the mainspring stores energy, then converts it to motion? Discover the physics of potential and kinetic energy and the inner wo...

For candy loving scientists, here's a fun way to experiment with physics in action! A step-by-step illustrated instruction manual guides clever kid...

Design your own gumball machine with endless creative possibilities! Arrange the pieces in unique configurations, crank the handle, and test your e...

Welcome to the fascinating world of mechanical engineering! Make 8 motorized robots that move in different ways while exploring how each one uses g...

Included in TIME's Best Inventions of 2024 list! Move over boring marble runs, there's a new kit in town. Witness physics in action with this innov...

Curious kids experiment with strength and stability, building 20 models that demonstrate mechanical physics or structural engineering principles. T...

Expand your Gecko Run with the Loop Expansion Pack! Add thrilling loops, jumps, and speed challenges to your marble run. This pack includes a loop ...

What's cooler than building a bot? Building 8 of 'em! A 48-page, full-color book guides the assembly, and a compact solar panel gives them power. T...

Celebrate Earth Day and the beauty of spring by building a gorgeous solar flower! This STEM kit guides ages 8+ through assembling a sapphire blue r...

Move over boring marble runs, there's a new kit in town! Witness physics in action with an innovative, flexible system of tracks that includes ever...

Curious kids build a loyal robotic reptile buddy that responds to gestures, changes colors, and automatically fires and retracts its tongue! This c...

Future engineers fly into physics fun building 5 awesome models driven by a rubber band powered propeller. Using ultralight plastic and bamboo part...

Expand your Gecko Run with the Twister Expansion Pack. This add-on includes a twister stunt, extra marbles, nano-adhesive pads, and additional trac...

Expand your Gecko Run with the Snake Expansion Pack. This add-on includes the Snake stunt piece, extra tracks, additional marbles, and nano-adhesiv...

Open the wonderful 24-page illustrated storybook, and read about two kids on an errand adventure with their dad. Along the way, 10 vehicles are nee...

Say hello to the most adorable vacuum you've ever seen! Future robotics engineers build their own cleaning friend using the illustrated instruction...

Future mechanical engineers supercharge their STEM learning while assembling 5 cool solar-powered robots! The easy-to-use building system and step-...

Kids First: Robot Engineer combines storytelling with hands-on building to introduce preschoolers to engineering fundamentals. Follow Ty and Karlie...

Looking for a fun and educational activity about solar power? Future engineers will be impressed as they construct this sleek, compact race car - i...

The power of wind makes them go - and you'll have fun building 6 awesome bots that move without any batteries at all. Easy, snap-together assembly ...