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Flex & Fly Plane Launcher

Water and Sand Sensory Table

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Bend, launch, and glide into the physics of flight! Build a launch lever that will send planes soaring, then put together a spring-powered runway for high-speed takeoff.

Fun & Games

Pretend Play

Holiday Gifts

Big Gifts

Build, play, and imagine with the Play Fort Set!

Cooking

Grades Pre-K

Spring Projects

Measure out early math with pretend play! Take orders from thirsty customers on your order board (while bolstering social development). Then, soak toy lemons and oranges in cold water and juice them into color-changing cups to make lemonade and orange juice.

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Fan Favorite Bundles

Science of Cooking Bundle (3-Pack)

Grab your apron and gather your ingredients — we're about to get cooking! While cooking up some delicious bakes, you'll learn the science behind ice crystals, yeast, and more. 

Science of Cooking Bundle includes Science of Cooking: Ice Cream, Science of Cooking: Bread & Butter, and Science of Cooking: Mini Cakes — at a special bundled discount price. All crates are delivered together, so you can get cooking right away!

Art & Creativity

Grades K-2

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Unique Christmas Gifts for Kids

School Break Activities 

Marble Run + Art Easel

Explore engineering with a marble run gameboard, complete with 35 track pieces and spinners to build all sorts of marble-ous machines. Then turn your gameboard into an artist's studio with a reversible chalkboard / whiteboard panel and built-in paint cups and art tray to help your imagination soar. 
Dimensions: 21" L x 25" W x 38" H 
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). 
Marble Run comes as a finished product, not a DIY building kit.

Electronics

Grades 6-8

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STEM in Motion

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Walking Robot

Build a walking robot and experiment with mechanical motion!

Sensory Toys

Water Play Bundle (2-Pack)

Beat the heat with these two water-themed activities that can be enjoyed together!

Travel Packs

Craft Kits for Kids

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Pixel Art Lightbox

Poke pegs into the screen and watch them glow with luminous color! Make brilliant patterns using 12 durable design templates, or create your own one-of-a-kind art.

Wooden Toys

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Early Childhood

Baby & Toddler Store Exclusive

Social Emotional Learning

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Scoop and spray and learn and play! This sensory play table comes ready for all kinds of splashy, sandy, creative fun.

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Show club PDP treatment

Earth & Space Science

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.

Arts & Music

Silly Speaker

Engineer your own cute square speaker — and give it a goofy grin!

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STEM Toys for 7 Year Olds 

STEM Toys for 8 Year Olds 

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Physical Science

Spinning Sand Garden

Build and wire your own rotating sand garden.

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Giant Bubbles

Discover science that’s unbelie-bubbly fun — with a pair of bubble wands you make yourself!  Make a giant bubble wand and a customizable string wand toy, stir up a special bubble mix, then learn tips and tricks for creating beautiful bubbles!

Animals & Nature

Life & Environmental Sciences

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Froggie Dissection Lab

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.

Montessori Toys for Kids

Imaginative Toys 

Fun Dough Pasta Maker

Roll and stamp your way to early math exploration — with the help of kid-friendly kitchen play!

Kitchen Sensory Play (3-Pack)

Discover kid-friendly sensory play with this 3-pack kitchen-themed bundle!

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Pendulum Art Machine

Discover the science of swing — with a pendulum-powered art machine you build yourself! Swing the platform, release the pen, and watch amazing automatic art unfold before your eyes. Experiment with switching up the speed of your pendulum’s swing, adding weight to the platform, adjusting the positions of the ropes, and more — and make bold new geometric designs every time! Then learn how to transform your finished spiral art into a variety of giftable (or keepable!) creations — from greeting cards to shrink-plastic keychains. Ready to get into the swing of things?

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Bake-a-Cake Stand Mixer

Dig into pretend play — with a hearty helping of math on the side!

Backyard Play

Science Experiment Kits

Environment

Solar Crayon Recycler

Build a solar-powered oven and recycle crayons.

Play Fort Set Bundle (2-Pack)

Start with this Crate

Labs 12-16

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Table Tennis Robot

Ace your serve with a table tennis robot you build yourself!

Marble Roller Coaster

Become a thrill engineer and build twisty, turny roller coasters. Construct a mechanical Ferris wheel that lifts marbles to the top. Ready to build a rad ride of your own?

Creativity & Invention

Make a meditative art machine that draws spiraling patterns in the sand.
 Engineer a rotating geared base and customize your setup to create a changing, spinning generative art machine that soothes.

On Preorder

Wind Play Lab

See how wind makes things spin, fly, and boogie with hands-on sensory play!

Music

Adult Kits

Christmas Gifts for Tweens

Stereo Headphones

Wire up a pair of headphones and jam to your favorite music!

Science & Creativity

Motorized Spin Art

Power up your own spin art studio and get creative!

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!

English Language Arts

Chain Reaction Workshop

Engineer your own awesome moving machines! Sturdy materials, moving mechanisms, and your imagination combine to create epic chain reactions.

Geologist Starter Kit

Ready to dig into geology? Build a pom-pom volcano and split open two real geodes to reveal the sparkly crystals inside.

Halloween

Corporate Gifting

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.

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Science Toys & Art Kits for Kids | KiwiCo

Serious fun for all ages

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Farmers Market

Growing Seeds Tissue Box Toy

Crystal Chemistry Garden

Play Fort Set

Science of Cooking: Ice Cream

Easy-Squeezy Juicer

Crates for the…

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Serious fun for all ages

Trending now

Fan favorites

Farmers Market

Growing Seeds Tissue Box Toy

Crystal Chemistry Garden

Play Fort Set

Science of Cooking: Ice Cream

Easy-Squeezy Juicer

Crates for the…

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