Shop customer favorites!

Best Sellers

   

Showing 11 to 20 of 40

  1. 1
  2. 2
  3. 3
  4. 4
  1. Young Chemist (2-Pack)

    $44.95 $49.90 value

    Ignite a passion for science at an early age and save when purchased as a pack. Recommended for Ages 5+.
  2. Paint Pendulum

    $24.95

    Engineer a paint pendulum, complete with paint bottle holder. Practice your swing and create vibrant spiral art, where every painting is totally unique. Then repurpose your pendulum to play games — like soccer, bowling, and more!
  3. 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.
  4. Froggie Lab Dissection

    $29.95

    Open Froggie up, then use a pair of kid-friendly tweezers to explore the major internal organs that you and Froggie have in common — heart, lungs, stomach, and more. Then play a diagnosis game to figure out why Froggie isn't feeling well.

    Froggie comes as a finished product, not a DIY building kit.
  5. Slime Party (5-Pack)

    $74.95 $94.75 value

    With this 5-pack of projects, you'll concoct oozy, fizzy volcano slime; glittery confetti slime; color-changing thermochromic slime; circuit-perfect conductive slime; doodle-able chalkboard slime; and some bonus glow-in-the-dark slime!
  6. Reptiles

    $24.95

    Reptiles are fascinating! Make a cuddly snake, play a game with a color-changing chameleon, build a turtle box for keepsakes.
  7. Slime Circuits

    $24.95

    Engineer a basic circuit, using your slime as a conductor to light up an LED (and a love of science!). Then conduct a series of electric experiments that showcase the science of switches, resistance, LED color-mixing, and more!
  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. 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.

    Requires microwave
  10. Solar System

    $24.95

    Create your own solar system mobile, complete with a light-up sun in the center.

   

Showing 11 to 20 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!