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  1. Headphones

    $34.95 $24.50

    Build the headphone headband, rig up the speaker drivers, and experiment with stereo sound. Explore how speakers and other electroacoustic transducers turn electricity into sound, then learn about the historical technologies that made modern headsets possible.
  2. Snowman Wobbler

    $14.95 $7.50

    Only 8 left in stock

    Use felt and fluff to craft a soft and squishy snowman that tips over when you push it... then wobbles right back up again. A wonderful way to explore the science of weight and balance, all while DIYing your own cheery holiday decor!
  3. Crystal Ombre Soap Making

    $29.95

    Craft and customize two kinds of colorful, crystal-inspired soaps. Explore mineral science, colorful ombre geodes, and chemical reactions.
  4. Little Artist

    $24.95 $17.50

    Encourage little artists with a color-block painting project, abstract bead sculpture, and a personalized art smock.
  5. Color-Mixing LED Crystal

    $24.95

    Make a color-mixing LED crystal and explore the physics of color!
  6. Rainbow Optics

    $24.95

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

    $24.95

    Scrub-a-dub-dub with a set of marbled soaps you made yourself!
  8. Animal Bath Bombs

    $17.95

    Learn about acid-base reactions and the science of molecules while mixing up a colorful chemical concoction, then press the mixture into bath-bomb shape. Drop your finished bath bombs into water to see fizzy chemical reactions — in action!
  9. Unicorn Sewable Circuit

    $14.95

    Sew up a circuit using flexible conductive thread, then craft a unicorn keychain whose horn lights up when you touch its tail to its hoof.
  10. Robot Sewable Circuit

    $14.95

    Explore wearable technology, conductivity, and the science of sewable circuits! Sew up a soft, flexible circuit using conductive thread, add LEDs, then craft a robot keychain whose eyes light up when you touch its hand to its belly. Ready to glow?

   

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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!