Electronics

Motion & Mechanics

Fun & Games

9-11

Bestsellers

Schools and Groups

Tinker

9-12

Robotics

Canada

Boys & Girls Clubs

STEM Toys 

DIY Science Kits

Domino Machine

What could be cooler than a domino run? Well, how about a robot that sets up the dominoes for you! With this crate you can build your own robot, then use it to help lay out amazing domino runs!

STEAM Gifts

Engineering

Unusual Gifts For Kids

STEM Toys for 7 Year Olds 

STEM Toys for 8 Year Olds 

Gifts For Smart Kids

Award Winning Toys 

Building Toy Kit Gifts 

Featured

Racing

Cannonball Launcher

Build a launcher that uses elastic power to shoot foam cannonballs. Contains everything you need to build a working launcher and matching mount.

Montessori Toys for Babies

Montessori Toys for Kids

Wooden Toys

Montessori Toys for 1 Year Olds

Montessori Toys for 2 Year Olds 

Music

Rainbow Ball Run

Sharpen your little one’s looking and listening skills with this colorful ball run, complete with a set of towers that sound melodies when the ball bounces on them. Challenge your baby to find new ways to play!

Geeky Gifts

Corporate Gifting

Educational Dinosaur Toys 

Remote-Controlled Snake Robot

Slither into the world of robotics by building a remote-controlled snake robot! Assemble and wire the electronics that drive the robot, and customize it by adding a decorative skin.

Pretend Play

Science

Art & Design

Back to School

Space & Astronaut Toys for Kids

Professions 

Astronomy

STEM Kits 

Astronaut Starter Kit

Build and launch a pair of model orbiter spaceships using the power of pumps. Paint a set of model planets, then construct a miniature solar system that really spins. Explore the ins-and-outs of space travel — from the history of space exploration, to the challenges of astronaut training, to amazing facts about life on the International Space Station.

Record Racer

Zoom through turns, dodge obstacles, and put the pedal to the metal with a mechanical toy racing game you engineer yourself! Ready to discover a need for speed — and a love of STEM?

Chemistry

Outdoor

Cooking

Science Gifts for Boys and Girls 

Summer Camp

Science of Cooking: Ice Cream

Dig into kid-friendly recipes for ice cream and sorbet — made using just the tools in this DIY ice cream kit and some ingredients from home!

Crawling Robot

Take the next step in your engineering adventures with a crawling robot you build yourself! Then learn about the incredible engineering behind other real-life robots that walk just like yours. Ready? Legs get to it!

Kiwi

En Español

Pinball Machine

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.

Animals & Nature

Gifts under $20

Outdoor toys for kids 

Life Sciences

Window Garden

Learn about plant science in a hands-on way, by assembling your own suction-cup window planters and growing a set of green bean and squash plants. Learn to take care of your plants, identify new plant parts as they sprout, and make yummy dishes using fruit and other plant parts!

For Your Room

Holiday Gifts

Levitating Lantern

Educational Dinosaur Toys for Kids

STEM Toys For 5 Year Olds 

STEM Toys For 6 Year Olds 

Imaginative Toys 

Paleontologist Starter Kit

Discover the ins-and-outs of a career in prehistoric exploration with this excavation toy for kids! Use tools to dig up bones, then assemble them into a dinosaur skeleton display!

Art & Creativity

Color and Light

Solar System

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

Pre-K

Math

Sensory Toys

Toddler

Baking and Fractions

Dig into pretend play — with a hearty helping of math on the side! All you need to cook up some creativity is this solid wood baking set for kids, complete with baking ingredients, spoons, and more!

DIY Gifts

Craft Kits for Kids

Arts

Light-Up Wire Art

Build two custom electronic art pieces with EL wire. Choose from five existing templates, or create your own from scratch.

Fort Builder Kit

Build a cave, a clubhouse, a castle, or anything else you can dream up with this endless fort building kit — perfect for architects-in-the-making.

Jumping Robot

Take a leap into engineering with this jumping robot! Along the way, learn how the physics of potential and kinetic energy puts the spring in the robot’s step. Ready to hop to it?

Backyard Play

Gift Guide

Science Experiment Kits

Bottle Rocket

Get ready to blast off into the air with your very own bottle rocket. Assemble your launcher, rocket, funnel, and launch mixture to experience some extremely fizzy fun.

Hydraulic Claw

Construct your own lifting claw and learn how hydraulic systems work. Continue the experimentation with bonus design challenges.

Eureka

Technology

Electric Pencil Sharpener

Sharpen some pencils — and your engineering knowhow — with a pencil sharpener you built yourself!

Basketball Catapult

Aim, shoot, and score with this physics-friendly crate! Engineer an adjustable catapult and play a spirited game of basketball. Learn about the science of sports, and experiment with different angles and arcs until you're a hoop superstar.

Social Emotional Learning

Draw & Grow Planter

Decorate your planter with a pair of stick-on shoes and a customizable chalk face, then complete your little planter pal with a wacky wheatgrass hairdo you grow yourself!

Chemistry Play Lab

Set up your own science lab with this kit for kids! Try some experiments, and learn about science! You get all the gear you need, plus a guide with step-by-step instructions for 11 fun experiments to explore!

Valentine's

Vox 

Headphones

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.

Colorful Chemistry

Learn about the scientific method, then put together a bubbly chemical reaction in your own fab chemistry lab. Try other color mixing experiments, make some colorful art, and learn about everyday chemical reactions. 

Crates can be purchased individually or you can buy a whole pack for the whole session.

Robots and Coding

Build and decorate your own friendly robot buddy. Create a robot rabbit with a customizable track to run along. Write programs to solve puzzles and send your robot along a path.

Walking Robot

Build a walking robot and experiment with mechanical motion!

KiwiCo Packs

Chemistry (4-Pack)

Ignite a passion for science with 4 complete chemistry lab kits. With Electrochemistry, you'll complete 2 experiments and engineer a clock that runs on just saltwater and strips of metal. With Fire Lab, you’ll create a colorful flame lamp and complete 7 combustion experiments. With Glow Lab, you’ll receive a UV light and mix up 3 glowing solutions. With Vortex Lab, you'll build a magnetic mixing machine and explore 4 amazing reactions. Recommended for Ages 14+. 
Delivery note: The Chemistry Pack is only eligible for Ground Shipping within the Contiguous United States. This pack will ship separately from any other items in your order. Your entire order only qualifies for Standard Shipping (delivered within 3-10 business days).

Slime

Color Changing Slime

Explore the science of thermochromism — with squishy slime that shifts color when it changes temperature!

Veterinarian Starter Kit

Check up on a favorite stuffed animal with a stethoscope, syringe, and other handy vet tools. Explore animal anatomy by assembling organ and muscle systems. Play a "find the fracture" game using an x-ray lightbox and a set of animal cards. Learn to read cat and dog body language, and how vets understand animals when they can't talk.

Crystal Chemistry Garden

Craft a colorful chemis-tree and garden using felt shapes and liquid watercolors. Then concoct a chemical solution that'll make your garden grow fun and funky crystals over two days, and learn the science behind them!

Crystal Ombre Soap Making

Craft and customize two kinds of colorful, crystal-inspired soaps. Explore mineral science, colorful ombre geodes, and chemical reactions.
 
Requires microwave. One project can make 3 unique soaps.

Electronics (4-Pack)

Shop for advanced electronics favorites and save when purchased as a pack. Qualifies for free shipping!

Young Chemist (3-Pack)

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

Enrichment for Grades 9-12 (3-Pack)

Geography

Professions Starter Kit (3-Pack)

Discover three of the coolest careers around with this crate bundle packed with hands-on learning!

Enrichment for Grades K-2 (5-Pack)

Doodle

Felt Succulent Garden

Make your own felt succulent garden and learn about felt crafting and clay modeling!

Koala

Jungle Fun

Sharpen your stacking skills with a tree stacker game. Decorate a jungle bag with leaf stickers — any way you like! Then play a matching game where you pick cards out of your jungle bag, find the matching Koala Crate character, then hook them to your completed tree. Ready to hang out in the jungle?

Spark scientific curiosity with DIY projects that make learning about STEM fun for kids! We've developed easy-to-follow experiments that introduce kids to biology, chemistry and tons of other scientific topics.

Top categoriesBurst graphic

Top categories