THAMES & KOSMOS

Explore hydraulics, mechanics, and robotics with a buildable, handheld water blaster and claw! Using over 180 plastic pieces, assemble this awesome...

Ever dreamed of having a vending machine in your room? With this engineering kit, you can build and experiment with your own toy vending machine. F...

Build six different air-and-water powered models Harness the power of air and water to make things move! Build water-rocket cars, jet-propelled boa...

Erupt your own volcano again and again! Press down on the "lava lever" a few times and — WOW! The crater pops up and the slime lava flows down its ...

Can you identify an unknown liquid or powder? What secrets become visible under a UV light? How do you analyze fingerprints, soil, ink, and handwri...

An apple that defies gravity and walks a tightrope — what would Isaac Newton have thought? Build a cute apple robot that walks along a tightrope. H...

Build, code, and play — with mighty REX! Assemble your own robotic model of the giant, powerful, ferocious Tyrannosaurus rex. Use the handheld cont...

All aboard! Put on your engineer’s cap and build your own steampunk-style train robot with amazing steam effects. You can build your TrainBot in tw...

Build six awesome bots that move without any batteries or electricity. The secret behind these fascinating machines is one of the oldest power sour...

Mix up a rainbow of mouth-wateringly delicious lip balms and lip glosses. Experiment with a vibrant spectrum of colors and flavors to create your o...

Build a zany inflatable tube dancer that uses the physics of flowing air to perform its eye-catching moves. Like the air dancers and tube men you m...

Discover the science of living things with this complete introductory microscope kit. The beautifully illustrated experiment manual guides you thro...

This big, colorful microscope was designed specifically to enable young kids to have successful microscopic viewing experiences, and to be a fun to...

Build five fun gadgets and learn about gears and transmissions. Create a helicopter model with a rotor that spins using a rubber band-powered motor...

Begin a lifetime of scientific investigation and understanding with 25 fun experiments in five key areas: nature, physics, chemistry, air, and wate...

Build and experiment with dozens of roller coaster models to make learning the physics of force, motion, and energy as fun as a day at the amusemen...

Build a series of adorable, motorized robotic animals with this introductory mechanical engineering kit for kids ages five and up. A beautifully il...