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...

Unleash your inner magician with the Magic Hat Edition! With 35 easy-to-follow feats, this set comes with over 40 props and a secret-filled manual....

It's time to get medieval on physics! Build ten sleek and updated models of catapults and crossbows. These classic siege weapons from the middle ag...

Look close with this kid-focused introductory microscope that magnifies objects up to 600 times! Check out pond water, plant leaves, hair, onions, ...

Unleash your inner cyborg with the Mega Cyborg Hydro Blaster! This buildable, handheld water blaster and claw allows you to explore the world of hy...

  Adventuring in the palm of your hand! Each excavation block is packed with a unique mineral or fossil, waiting to be discovered. Use the included...

Gecko Run takes classic marble runs to the next level with new creative challenges and less restrictive building requirements. This innovative marb...

Gecko Run takes classic marble runs to the next level with new creative challenges and less restrictive building requirements. This innovative marb...

Gecko Run takes classic marble runs to the next level with new creative challenges and less restrictive building requirements. This innovative marb...

Move over boring marble runs, there's a new kit in town! Witness physics in action with this innovative, flexible system of tracks. Thanks to nano ...

Bring snow inside... any time of year, no matter where you live! Kids enjoy the magic of cool snow-based experiments and learn about weather along ...

Welcome to the fascinating world of mechanical engineering! Make 8 robotic animal characters including: a unicorn, sea otter, fox, bear, baby llama...

Unicorns, clouds, and rainbows ... oh my! Make your own delicious, fun gummy shapes using a gelatin mixture: Pour it into the included mold and con...

Oh no, you silly dodo, don't push your egg down the mountain! This fun, fast cooperative game challenges players to race against gravity. Work toge...

If you're raising a future Sherlock Holmes, your young detective needs all the tools of the trade. Help them crack the case on any mystery with thi...

Wow future geologists and rock-loving kiddos with a crystal-filled kit! Curious STEM learners customize the included iridescent display case by dec...

Get ready for some curiosity supercharged fun with the Wow in the World Light-Up Terrarium! In collaboration with Thames & Kosmos and Wondery K...

Thames & Kosmos teams up with the innovative Wondery Kids podcast team in a first-of-its-kind collaboration that gives kids an exciting new way...

If you're raising a future James Bond, your young secret agent needs the high-tech help of a spy watch. Crack the case on any covert mission with 9...

Get ready to become a weather expert with the Weather & Climate Lab! This compact 5-in-1 weather station comes with all the tools you need to i...

Indulge in the tastiest game of pinball with Pinball Machine Maker: Gumball Rally! Assemble your machine, place the obstacles, then aim and shoot e...

Unlock microscopic wonders with the Thames & Kosmos Microscope! View prepared slides or prepare your own with the 45-piece accessory set. Use t...

Watch out! The cookie monsters have stolen ten cookie jars from your neighborhood and are on the loose! Can you solve their monstrous riddles and e...

Decode, encode, and communicate covertly with the Spy Labs: Secret Codes and Ciphers Tin. Packed in a sturdy metal tin, this kit includes a code wh...