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Best-Selling Science Kits & STEM Toys

Enriching, science-based learning needs to have a few of these key elements: curious minds, hands-on projects, quality materials, and fun results! These 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.

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© 2026 KiwiCo, Inc. KIWICO, Eureka Crate, Doodle Crate, Kiwi Crate, Atlas Crate, and Koala Crate are trademarks of KiwiCo, Inc., registered in the USA and other countries. The Bird Design, KiwiCo Labs, KiwiCo Studio, KiwiCo Sprout, KiwiCo World, Maker Crate, Tinker Crate, Yummy Crate, and Panda Crate are trademarks of KiwiCo, Inc. All Rights Reserved.

75 Results

Motorized Christmas Train Advent Calendar image

Motorized Christmas Train Advent Calendar

4.9

Price:

Flex & Fly Plane Launcher image

Flex & Fly Plane Launcher

4.7

Price:

Most loved

Hearts graphic
Christmas Candle Carousel image

Christmas Candle Carousel

4.9

Price:

Water Pump Play Set image

Water Pump Play Set

5.0

Price:

Pixel Art Lightbox image

Pixel Art Lightbox

5.0

Price:

Most loved

Hearts graphic
Marble Roller Coaster image

Marble Roller Coaster

4.9

Price:

Light Play Lab image

Light Play Lab

Price:

Desktop Pinball image

Desktop Pinball

Von

logo

Kiwi Crate

From $28.56

Roller Ramp Arcade Game image

Roller Ramp Arcade Game

4.9

Price:

Play Fort Set image

Play Fort Set

5.0

Price:

Table Tennis Robot image

Table Tennis Robot

Von

logo

Eureka Crate

From $28.56

Mega Hand image

Mega Hand

Von

logo

Tinker Crate

From $28.56

Most loved

Hearts graphic
Veterinarian Starter Kit image

Veterinarian Starter Kit

4.9

Price:

Ausverkauft

Santa and Snowman Wobbler (2-Pack) image

Santa and Snowman Wobbler (2-Pack)

4.8

Price: ($35.58 value)

Most loved

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Pinball Machine image

Pinball Machine

4.8

Price:

Animal Bath Bombs image

Animal Bath Bombs

4.6

Price:

Motorized Spin Art image

Motorized Spin Art

Von

logo

Kiwi Crate

4.9

From $28.56

Cozy Glowing Fireplace image

Cozy Glowing Fireplace

5.0

Price:

Silly Speaker image

Silly Speaker

5.0

Original Price: , Discount price: 15% off

Most loved

Hearts graphic
Cannonball Launcher image

Cannonball Launcher

4.7

Price:

Dinosaur Dig image

Dinosaur Dig

Von

logo

Koala Crate

From $28.56

Fun Dough Pasta Maker image

Fun Dough Pasta Maker

4.9

Price:

Pinball Machine image

Pinball Machine

Von

logo

Eureka Crate

From $28.56

Piano Xylophone and Shaker Set image

Piano Xylophone and Shaker Set

5.0

Price:

Pretend Play Doctor's Kit image

Pretend Play Doctor's Kit

5.0

Price:

Stereo Headphones image

Stereo Headphones

4.8

Price:

Civil Engineer Starter Kit image

Civil Engineer Starter Kit

5.0

Price:

Oil + Water Chemistry image

Oil + Water Chemistry

5.0

Price:

Pop-Up Shape Sorter Puzzle image

Pop-Up Shape Sorter Puzzle

5.0

Price:

My Body and Me image

My Body and Me

Von

logo

Koala Crate

From $28.56

Robot Coder Starter Kit image

Robot Coder Starter Kit

4.9

Price:

Giant Bubbles image

Giant Bubbles

4.9

Price:

Froggie Dissection Lab image

Froggie Dissection Lab

4.8

Price:

Geologist Starter Kit image

Geologist Starter Kit

5.0

Price:

Motorized Wings Costume image

Motorized Wings Costume

4.8

Price:

Basketball Catapult image

Basketball Catapult

5.0

Price:

Fill-It-Up Recycling Truck Set image

Fill-It-Up Recycling Truck Set

5.0

Price:

Sensory Sand Shaved Ice Maker image

Sensory Sand Shaved Ice Maker

5.0

Price:

Growing Seeds Tissue Box Toy image

Growing Seeds Tissue Box Toy

5.0

Price:

Puffy Stickers image

Puffy Stickers

Von

logo

Doodle Crate

From $28.56

Most loved

Hearts graphic
Mechanical Ornaments Advent Calendar image

Mechanical Ornaments Advent Calendar

4.9

Price:

Most loved

Hearts graphic
Butterfly Wings image

Butterfly Wings

4.9

Price:

Monotype Prints image

Monotype Prints

Von

logo

Doodle Crate

From $28.56

World image

World

Von

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Atlas Crate

4.0

From $28.56

Easy-Squeezy Juicer image

Easy-Squeezy Juicer

5.0

Price:

Most loved

Hearts graphic
Paleontologist Starter Kit image

Paleontologist Starter Kit

4.9

Price:

Speedy Race Cars image

Speedy Race Cars

4.5

Price:

Most loved

Hearts graphic
Walking Robot image

Walking Robot

4.8

Price:

Astronaut Starter Kit image

Astronaut Starter Kit

5.0

Price:

Most loved

Hearts graphic
Domino Machine image

Domino Machine

4.8

Price:

Remote-Controlled Snake Robot image

Remote-Controlled Snake Robot

4.6

Price:

Most loved

Hearts graphic
Science of Cooking: Ice Cream image

Science of Cooking: Ice Cream

4.8

Price:

Crawling Robot image

Crawling Robot

4.8

Price:

Most loved

Hearts graphic
Colorful Chemistry image

Colorful Chemistry

4.8

Price:

Marble Run + Art Easel image

Marble Run + Art Easel

4.7

Price:

Most loved

Hearts graphic
Ice Skating Rink image

Ice Skating Rink

4.7

Price:

Marine Biologist Starter Kit image

Marine Biologist Starter Kit

4.9

Price:

Most loved

Hearts graphic
Santa's Railroad Advent Calendar image

Santa's Railroad Advent Calendar

4.9

Price:

Most loved

Hearts graphic
Christmas Village Advent Calendar image

Christmas Village Advent Calendar

4.9

Price:

Chain Reaction Workshop image

Chain Reaction Workshop

4.8

Price:

Build & Play Chess Set image

Build & Play Chess Set

5.0

Price:

Pendulum Art Machine image

Pendulum Art Machine

5.0

Price:

Microscope Exploration Set image

Microscope Exploration Set

5.0

Price:

Most loved

Hearts graphic
Motion-Sensing Spider image

Motion-Sensing Spider

4.9

Price:

Winter Wonderland Advent Calendar image

Winter Wonderland Advent Calendar

5.0

Price:

Wind Play Lab image

Wind Play Lab

Von

logo

Koala Crate

4.9

Price:

Car-Go Puzzle Box image

Car-Go Puzzle Box

5.0

Price:

Chemistry Play Lab image

Chemistry Play Lab

4.8

Price:

Color Wheel Racers and Ramp image

Color Wheel Racers and Ramp

5.0

Price:

Kitchen Scrap Planter image

Kitchen Scrap Planter

5.0

Price:

Butterflies and Caterpillars image

Butterflies and Caterpillars

Von

logo

Koala Crate

From $28.56

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