At KiwiCo, we design award-winning, hands-on STEM kits for kids ages 3-16+. We deliver them by mail and call them crates. Each crate explores a new concept in science, technology, or engineering in a fresh way that's seriously fun & profoundly enriching. We take big ideas and make them accessible and fun for kids of all ages!Learn more about what sets KiwiCo apart »
Best Science Kits for Ages 9-12
Explore chaotic motion with a double pendulum and UV light!Get Started with this Crate »
Learn how to build your own hydraulic lifting claw!Get Started with this Crate »
Build a walking robot and experiment with mechanical motion!Get Started with this Crate »
Best Science Kits for Ages 5-8
Make a drawing top, a penny top, and a blow top to explore spinning science!Get Started with this Crate »
Use liquid color to see capillary action firsthand!Get Started with this Crate »
Play with angles and momentum while discovering pinball game physics!Get Started with this Crate »
Best Science Kits for Ages 3-4
Take a dive into aquatic adventures with 3 engaging activities!Get Started with this Crate »
Decorate a gardening apron & make flowers for your plant!Get Started with this Crate »
Get to know some fascinating reptiles with a soft cuddly snake.Get Started with this Crate »
What sets our crates apart from typical science kits for kids?
We deliver carefully engineered components along with clear instructions and inspiration.
We ensure that the projects are multi-dimensional with lots of possibilities for kids to tinker and explore.
Every crate is tested rigorously by our experts and lots of kids.
Our projects are enriching, accessible, and fun for kids of all ages.
Each of our crates presents kids with a multi-faceted experience that can last for hours, or even days! Our crates include a magazine with additional science experiments and activities, and lots of rich content to dig deeper into the theme. We also provide online resources and video content for every project, all designed to allow kids to explore further.
Awards and Press
- Parents' Choice Gold Award
- Dr. Toy's 10 Best Creative Products Winner
- Academics' Choice Brain Toy Award Winner
- Oppenheim Toy Portfolio Best Toy Award Gold Seal
- Dr. Toy's Best Picks Winner
- Purdue University - Promotes Engineering Thinking & Design