STEM kits by age.

Chemistry sets, circuit kits, coding robots, and project crates from KiwiCo, Thames & Kosmos, Snap Circuits, CrunchLabs, and others. Choose by the subject your child already likes, then check the maker’s age range and how much adult help the instructions expect.

All Under $50

STEM · 8+

Thames & Kosmos Massive Erupting Volcano 642116

Best for: Kids 8 to 12 who like messy science projects

Researched

$34.95

STEM · 8+

Thames & Kosmos Rock Tumbler 678006

Best for: Kids 8 to 12 who collect rocks and can wait

Researched

$49.95

STEM · 8+

Thames & Kosmos Magnetic Science 665050

Best for: Kids 8 to 12 curious about how magnets work

Researched

$24.95

STEM · 5+

Thames & Kosmos Kids First Robot Factory 567016

Best for: Kids 5 to 7 who like robots and picture books

Researched

$29.95

Not sure what fits?

Three quick questions, and we’ll suggest a short list.

Try the Gift Finder

STEM · 7+

KiwiCo Spinning Sand Garden 6940

Best for: Kids 7 to 12 who like gears, magnets and patterns

Researched

$29.95

Not sure?

Try the Gift Finder.

Three quick questions, and we’ll suggest a short list.

Try the Gift Finder

STEM · 9+

KiwiCo Flex & Fly Plane Launcher 5907

Best for: Kids 9 and up who like flight and outdoor play

Researched

$44.95

STEM · 9+

Engino Discovering STEM Mechanics: Cams & Cranks STEM04

Best for: Kids 9 and up who want to know how machines move

Researched

$37.99

STEM · 5+

KiwiCo Roller Ramp Arcade Game

Best for: Kids 5+ who want to build a game, then play it

Researched

$24.95

STEM · 12+

KiwiCo Kinetic Light-Up Speaker

Best for: Tweens and teens 12+ curious about electronics

Researched

$49.95

STEM · 9+

KiwiCo Remote-Controlled Snake Robot

Best for: Kids 9+ who want a first robot build

Researched

$39.95

STEM · 10+

Thames & Kosmos Hydraulic Boxing Bots

Best for: Kids 10+ who want a build that ends in a match

Researched

$49.95

STEM · 3–6

KiwiCo Koala Crate

Best for: Monthly hands-on projects for ages 3 to 6

Researched

$30

Subscription · 10+

MEL Science MEL Chemistry Subscription

Best for: Kids aged 10+ who want hands-on chemistry

Researched

$29.90

Subscription · 8–13

CrunchLabs Build Box

Best for: Young engineers aged 8 to 13 who like Mark Rober

Researched

$29.95

Subscription · 9–12

KiwiCo Tinker Crate

Best for: Kids aged 9 to 12 who like engineering builds

Researched

$30

Subscription · 6–10

Little Passports World Adventures

Best for: Kids aged 6 to 10 curious about other countries

Researched

$32

STEM · 5–10

Osmo Coding Starter Kit for iPad

Best for: iPad families with kids aged 5 to 10

Researched

$49.99

STEM · 6+

Thames & Kosmos Ooze Labs Chemistry Station 642105

Best for: Kids aged 6+ who like messy science

Researched

$39.95

STEM · 6+

Thames & Kosmos Wow in the World Kids’ Microscope & Biology Kit 545011

Best for: Curious kids aged 6+ who like bugs and plants

Researched

$29.95

STEM · 7+

KiwiCo Silly Speaker

Best for: Kids aged 7+ who like music and gadgets

Researched

$29.95

STEM · 7+

KiwiCo Marble Roller Coaster

Best for: Builders aged 7+ who like marble runs

Researched

$49.95

STEM kits

KiwiCo Kiwi Crate

Best for: Kids aged 6–9 who like making things

Researched

$24

Keep exploring.

More ways to explore stem kits.

By age

By category

By brand

Buying guides

Reviews

By budget & deals

Questions about STEM kits.

Should I choose a one-time STEM kit or a subscription?

A one-time kit suits a gift with a clear theme, like circuits or chemistry. Subscriptions from KiwiCo, CrunchLabs, or MEL Science send a project on a schedule, so check the cost per box and the cancellation terms first.

Do chemistry sets need adult supervision?

Chemistry sets such as the Thames & Kosmos CHEM line include chemicals and carry the maker’s warnings, which call for adult supervision. Read the maker’s age and safety guidance before buying for a younger child.

Do coding kits need a tablet or computer?

Some do. Osmo kits work with a compatible tablet, and some robotics kits use a companion app, while Snap Circuits and most KiwiCo crates work without a screen.

See all FAQs

Looking for a gift?

Our 2026 Holiday Gift Guide sorts picks by age and budget.

See the gift guide Contact us