STEM

One of House of Marbles' all-time best sellers. Never be lost when you're out scouting. Don't forget to view the rest of House of Marbles' Junior A...

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...

Looking for a durable and reliable way to secure your gear during outdoor adventures? Look no further than House of Marbles Carabiner Clip!

Check out our new favorite STEM activity for curious kiddos! Ages 6+ use the crystal clear instructions to build a durable mini pinball game in abo...

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...

Meet SparkJump! This new family-owned line of high-quality woodworking kits empowers kids and adults to accomplish amazing things together. Slow do...

Step into the role of paleontologist as you excavate dinosaur figures from plaster dino eggs! This kit comes with ten dino eggs for you to dig into...

Grow your own tranquil oasis! A thoughtful gift for nature-loving kids and kidults, everything's included to assemble and care for a DIY moss terra...

All hands on deck - there''s treasure to be found! In this pirate-themed dig-out kit, a replica pirate treasure is waiting to be excavated from a p...

Curiosity, supercharged! Thames & Kosmos teams up with the innovative Wondery Kids podcast team in a first-of-its-kind collaboration that gives...

Grow meat-eating fly traps in our high-quality, custom-crafted glass terrarium. This limited and exclusive collection of flytraps are really carniv...

Let’s rock and roll! Amp up your rock collection and explore the secrets of geology with the Thames & Kosmos Rock Tumbler! This custom-designed...

Mix up three different types of safe, non-toxic slime and play funny pranks with them. Make fake snot, a glowing “radioactive” spill, and trick...

Excavate a T. rex skeleton model from inside a 3D T. rex fossil replica. The T. rex lies before you as a 3D fossil, almost as if it had died just m...

Our fourth generation wind turbine kit! Wind is one of the most promising sources of clean, renewable energy available today. With this kit, you ca...