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  1. Chalkboard & Glow Slime

    $24.95

    Stretch your chemistry and doodling muscles and mix two kinds of slime with this hands-on kit — jet-black chalkboard slime and glow-in-the-dark slime
  2. Spin Art Machine

    $24.95

    Make a spin art machine and experiment with centrifugal forces!
  3. Arcade Catapult

    $24.95

    Build an arcade catapult and challenge a friend to a game!
  4. Arcade

    $24.95

    Hit the arcade and build the claw and create a couple of cute pom pom prizes! Set up your own claw game and see if you can win the prizes. Learn about other arcade and then build your own version!
  5. Speedy Race Cars

    $15.95

    Create a custom speedy race car and use black washi tape to create a speedway on any surface.
  6. Electronics (4-Pack)

    $142.95 $159.80 value

    Shop for advanced electronics favorites and save when purchased as a pack. Qualifies for free shipping!
  7. Color-Mixing LED Crystal

    $24.95

    Make a color-mixing LED crystal and explore the physics of color!
  8. Ballista

    $24.95

    Build a ballista and experiment with aiming and launching!
  9. Rainbow Optics

    $24.95

    Create a color-mixing light jar, project colorful shadows, and play with rainbow glasses to learn about rainbow optics!
  10. Rainbows

    $24.95

    Create a scene against a rainbow of colors in a stained glass work of art!

   

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Best-Selling Science Kits & STEM Toys

Rich scientific learning needs to have a few of these key elements: curious minds, hands-on projects, quality materials, and fun results. Popular science kits and STEM toys contain all you need to share exciting discoveries with the ones you love most.

With a healthy dose of enthusiasm and the right project, your little scientist will have an unforgettable experience! KiwiCo offers popular science kits that give curious adventurers the ability to tinker, test, and try out their theories! Science can be fun, and that's a theory that can be proven with just the right experiment!