Best-Selling Science Kits & STEM Toys | KiwiCo

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92 Results

Motorized Christmas Train Advent Calendar image

Motorized Christmas Train Advent Calendar

4.9

Price:

Limited Stock

Easy-Squeezy Juicer image

Easy-Squeezy Juicer

5.0

Price:

Most loved

Christmas Candle Carousel image

Christmas Candle Carousel

4.9

Price:

Flex & Fly Plane Launcher image

Flex & Fly Plane Launcher

4.7

Price:

Puking Pumpkin image

Puking Pumpkin

5.0

Price:

Pixel Art Lightbox image

Pixel Art Lightbox

5.0

Price:

Most loved

Marble Roller Coaster image

Marble Roller Coaster

4.9

Price:

Chomping Mechanical Dinosaur Costume image

Chomping Mechanical Dinosaur Costume

4.6

Price:

Limited Stock

Nature Kaleidoscope Set image

Nature Kaleidoscope Set

4.7

Price:

Sensory Play Lightbox image

Sensory Play Lightbox

5.0

Price:

Limited Stock

Peekaboo Play Tunnel image

Peekaboo Play Tunnel

4.8

Price:

2-pack

Advent Calendar Bundle (2-Pack) image

Advent Calendar Bundle (2-Pack)

5.0

Price: ($99.90 value)

Science of Cooking: Mini Cakes image

Science of Cooking: Mini Cakes

5.0

Price:

Limited Stock

Veterinarian Starter Kit image

Veterinarian Starter Kit

4.9

Price:

Most loved

Pinball Machine image

Pinball Machine

4.8

Price:

Animal Bath Bombs image

Animal Bath Bombs

4.6

Price:

Sensory Solar System Set image

Sensory Solar System Set

5.0

Price:

Limited Stock

Paper Dolls image

Paper Dolls

5.0

Price:

Cozy Glowing Fireplace image

Cozy Glowing Fireplace

5.0

Price:

Rainbow Blocks and Cars Building Set image

Rainbow Blocks and Cars Building Set

5.0

Price:

Most loved

Cannonball Launcher image

Cannonball Launcher

4.7

Price:

Limited Stock

Santa and Snowman Wobbler (2-Pack) image

Santa and Snowman Wobbler (2-Pack)

4.8

Price: ($29.90 value)

Limited Stock

Fun Dough Pasta Maker image

Fun Dough Pasta Maker

4.9

Price:

Fishing Game image

Fishing Game

4.6

Price:

Make-It-Move Holiday Bundle image

Make-It-Move Holiday Bundle

Price: ($69.90 value)

Record Racer image

Record Racer

4.9

Price:

Piano Xylophone and Shaker Set image

Piano Xylophone and Shaker Set

5.0

Price:

Limited Stock

Pretend Play Doctor's Kit image

Pretend Play Doctor's Kit

5.0

Price:

3-pack

STEM Holiday Bundle (3-Pack) image

STEM Holiday Bundle (3-Pack)

4.8

Price: ($94.85 value)

Civil Engineer Starter Kit image

Civil Engineer Starter Kit

5.0

Price:

Splash Blasters image

Splash Blasters

4.8

Price:

Pop-Up Shape Sorter Puzzle image

Pop-Up Shape Sorter Puzzle

5.0

Price:

Light Play Lab Book Bundle image

Light Play Lab Book Bundle

Price: ($64.90 value)

Birds Have A Lot To Say image

Birds Have A Lot To Say

5.0

Price:

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:

Most loved

Glowing Horn Unicorn Costume image

Glowing Horn Unicorn Costume

4.8

Price:

Limited Stock

Bubble Machine image

Bubble Machine

4.9

Price:

Fold & Play Fliers image

Fold & Play Fliers

5.0

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:

Limited Stock

Be A Rainbow: A move-the-shapes book! image

Be A Rainbow: A move-the-shapes book!

Price:

Over Under Opposite image

Over Under Opposite

5.0

Price:

Farmers Market image

Farmers Market

4.8

Price:

Poppy Plushie Book Set image

Poppy Plushie Book Set

Price: ($53.80 value)

Chop Chop! Yum Yum! image

Chop Chop! Yum Yum!

Price:

Kellan Plushie Book Set image

Kellan Plushie Book Set

Price: ($59.80 value)

Are You A Koala? image

Are You A Koala?

Price:

Surprise, Poppy! A Counting Book image

Surprise, Poppy! A Counting Book

Price:

By Your Side image

By Your Side

5.0

Price:

Moo Moo Kangaroo image

Moo Moo Kangaroo

5.0

Price:

Who in the Zoo? image

Who in the Zoo?

Price:

Kellan and Friends Down on the Farm image

Kellan and Friends Down on the Farm

Price:

Which Way Home? image

Which Way Home?

5.0

Price:

Most loved

Paleontologist Starter Kit image

Paleontologist Starter Kit

4.9

Price:

Motorized Spin Art image

Motorized Spin Art

From

Kiwi Crate

4.9

From $24

Solar Lantern image

Solar Lantern

4.7

Price:

Speedy Race Cars image

Speedy Race Cars

4.5

Price:

Most loved

Walking Robot image

Walking Robot

4.8

Price:

Astronaut Starter Kit image

Astronaut Starter Kit

5.0

Price:

Most loved

Domino Machine image

Domino Machine

4.8

Price:

Remote-Controlled Snake Robot image

Remote-Controlled Snake Robot

4.6

Price:

Most loved

Science of Cooking: Ice Cream image

Science of Cooking: Ice Cream

4.8

Price:

Limited Stock

Levitating Lantern image

Levitating Lantern

4.8

Price:

Crawling Robot image

Crawling Robot

4.8

Price:

Jumping Robot image

Jumping Robot

4.7

Price:

Most loved

Colorful Chemistry image

Colorful Chemistry

4.8

Price:

Marble Run + Art Easel image

Marble Run + Art Easel

4.7

Price:

Showing 71 of 92

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.