Shop customer favorites!

Best Sellers

   

Showing 21 to 30 of 40

  1. 1
  2. 2
  3. 3
  4. 4
  1. Poured Paintings

    $24.95

    Learn how primary colors can be used to make all the colors of the rainbow, and how complementary and analogous colors work together. Then use what your newfound color knowhow to craft a couple of abstract poured paintings.
  2. Glow Lab

    $44.95

    Explore UV light and mix up 3 solutions that glow in the dark. Explore the chemistry of fluorescence, phosphorescence, and chemiluminescence.

    Delivery note: This item will ship separately from any other items in your order. Your entire order only qualifies for Standard Shipping (delivered within 3-10 business days).
  3. Vortex Lab

    $49.95

    Build a magnetic mixing machine and explore 4 amazing reactions that explore the science of solubility, reaction speed, and oxidation-reduction.

    Delivery note: Vortex Lab is only eligible for Ground Shipping within the Contiguous United States. This item will ship separately from any other items in your order. Your entire order only qualifies for Standard Shipping (delivered within 3-10 business days).
  4. 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
  5. Rainbows

    $24.95

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

  6. Koala Crate Classics (5-Pack)

    $99.95 $124.75 value

    Explore STEAM-powered play at home with this 5-pack bundle of some of our most popular Koala crates. There's something here for every little learner.
  7. Spin Art Machine

    $24.95

    Make a spin art machine and experiment with centrifugal forces!
  8. Walking Robot

    $24.95

    Build a walking robot and experiment with mechanical motion!

  9. Pinball Machine

    $24.95

    Design the board, launch, and play, all while discovering pinball game physics!

    Everything needed, from materials to illustrated directions, is included, along with imagine!, a bonus play & learn magazine for kids.

  10. Kiwi Crate Classics (5-Pack)

    $99.95 $124.75 value

    Create your own STEAM-powered adventure at home with this 5-pack bundle of some of our most popular Kiwi crates. There's something here for every budding scientist, artist, or innovator — from hands-on projects to amazing articles.

   

Showing 21 to 30 of 40

  1. 1
  2. 2
  3. 3
  4. 4

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!