The 10 Best Science Kits as of July 2026

How we ranked these science kits

Each pick earns a score out of 10 from weighted criteria:

Performance (35%) — how well each science kit does its core job.
Value (25%) — quality and features for the price.
Build & reliability (20%) — materials, longevity and warranty.
Features (20%) — meaningful extras that improve the experience.

At a glance: top 10 compared

Swipe across to see all columns, including Amazon links →

#	Science Kits	Score	Best for	Age	Approx. Price	Amazon links
1	Thames & Kosmos Chemistry C500	9.0	Best overall	10+	£45	View Price
2	Snap Circuits Classic SC-300	8.9	Best electronics	8+	£40	View Price
3	National Geographic Mega Crystal Growing Kit	8.7	Best for wow factor	8+	£30	View Price
4	Thames & Kosmos Physics Workshop	8.6	Best engineering	8+	£50	View Price
5	Learning Resources Primary Science Set	8.5	Best for young kids	4+	£25	View Price
6	Galt Horrible Science Kit	8.4	Best gross-out fun	8+	£20	View Price
7	Clementoni Galaxy Planetarium	8.3	Best astronomy	8+	£25	View Price
8	4M Kidz Labs Weather Science	8.3	Best value topic kit	8+	£12	View Price
9	Thames & Kosmos Little Labs Kit	8.2	Best starter	5+	£18	View Price
10	Galt Explore & Discover Kit	8.1	Best cheap	6+	£10	View Price

The full ranking

Best overall

Thames & Kosmos Chemistry C500

9.0Our number one pick.

The Thames & Kosmos C500 chemistry set offers a well-structured 28-experiment course with quality equipment and a clear manual, a superb introduction to real chemistry. Adult supervision is needed, but the depth and quality are excellent.

Learning: 9.4Fun: 9.0Quality: 9.2Value: 8.8

Pros

Structured real experiments
Quality equipment
Clear manual

Cons

Needs supervision
Some refills needed

Check price on Amazon≈ £45

Best electronics

Snap Circuits Classic SC-300

8.9A superb runner-up.

Snap Circuits makes electronics genuinely fun with click-together components and 300 projects that teach real circuit concepts safely. It is a single topic, but the learning and replay value are excellent.

Learning: 9.4Fun: 9.2Quality: 9.0Value: 8.8

Pros

Teaches real electronics
Safe click-together parts
300 projects

Cons

One subject area
Small parts to store

Check price on Amazon≈ £40

Best for wow factor

National Geographic Mega Crystal Growing Kit

8.7Rounds out our top three.

This National Geographic kit grows a genuinely impressive large crystal plus a real specimen, delivering big wow factor and lasting results. Growing takes patience, but the payoff and quality are excellent.

Learning: 8.8Fun: 9.2Quality: 8.8Value: 9.0

Pros

Impressive crystal results
Includes real specimens
Good instructions

Cons

Takes days to grow
One-time experiment

Check price on Amazon≈ £30

Best engineering

Thames & Kosmos Physics Workshop

8.6A standout in the upper half.

The Physics Workshop builds working machines to teach mechanics and engineering principles through hands-on models. It is involved to build, but the learning and quality are excellent.

Learning: 9.2Fun: 8.8Quality: 9.0Value: 8.6

Pros

Teaches real mechanics
Builds working machines
Reusable parts

Cons

Involved assembly
Best with guidance

Check price on Amazon≈ £50

Best for young kids

Learning Resources Primary Science Set

8.5A well-rounded mid-table pick.

This Learning Resources set gives young children chunky, safe tools like beakers and goggles to explore simple experiments and role-play. It is basic in science depth, but the early-years engagement and value are excellent.

Learning: 8.6Fun: 9.0Quality: 8.6Value: 9.0

Pros

Chunky, safe tools
Great for early years
Encourages role-play

Cons

Basic experiments
Younger focus

Check price on Amazon≈ £25

Best gross-out fun

Galt Horrible Science Kit

8.4Great value in the middle of the pack.

The Horrible Science range hooks kids with gross, fun experiments like slime and fake blood that sneak in real science. It is more fun than rigorous, but the engagement and value are good.

Learning: 8.4Fun: 9.2Quality: 8.4Value: 9.0

Pros

Fun, gross experiments
Hooks reluctant learners
Affordable

Cons

Less rigorous
Some messy cleanup

Check price on Amazon≈ £20

Best astronomy

Clementoni Galaxy Planetarium

8.3A dependable pick if the price is right.

The Clementoni planetarium projects the night sky and teaches constellations, a nice introduction to astronomy for space-mad kids. Projection is basic, but the topic appeal and value are good.

Learning: 8.6Fun: 8.6Quality: 8.2Value: 8.8

Pros

Introduces astronomy
Star projector included
Good topic appeal

Cons

Basic projection
Needs a dark room

Check price on Amazon≈ £25

Best value topic kit

4M Kidz Labs Weather Science

8.3Solid, if outshone by pricier rivals.

The 4M Weather Science kit teaches weather concepts through several small experiments at a low price, good single-topic value. Parts are lightweight, but the learning and value are good.

Learning: 8.4Fun: 8.4Quality: 8.2Value: 9.2

Pros

Teaches weather science
Several experiments
Very affordable

Cons

Lightweight parts
Short activities

Check price on Amazon≈ £12

Best starter

Thames & Kosmos Little Labs Kit

8.2A budget-friendly option worth a look.

The Little Labs starter kit introduces simple, safe experiments for younger children with clear guidance, a gentle first science set. It is basic, but as a starter the value is good.

Learning: 8.4Fun: 8.4Quality: 8.4Value: 8.8

Pros

Gentle first experiments
Clear guidance
Safe for younger kids

Cons

Limited depth
Quick to complete

Check price on Amazon≈ £18

Best cheap

Galt Explore & Discover Kit

8.1Rounds out our top ten.

The Galt Explore & Discover kit offers a handful of simple experiments at a pocket-money price, fine for a quick science taster. It is very basic, but for the money it does the job.

Learning: 8.2Fun: 8.2Quality: 8.0Value: 9.0

Pros

Very affordable
Simple experiments
Good taster

Cons

Very basic
Few activities

Check price on Amazon≈ £10

Frequently asked questions

What's the best of the science kits in 2026?

Our top overall pick is the Thames & Kosmos Chemistry C500, which leads on our combined score for performance, value and features. The Snap Circuits Classic SC-300 and National Geographic Mega Crystal Growing Kit are excellent alternatives depending on budget and needs.

How did we choose these?

We weight performance, value, build quality and features, drawing on hands-on use and independent testing. See the methodology box above for the full breakdown.

Are these prices accurate?

Prices are approximate UK figures at the time of writing and change frequently. Click through to Amazon for the current price.

The bottom line

If you just want the best science kits without overthinking it, the Thames & Kosmos Chemistry C500 is our top recommendation — it earns the highest overall score for performance, value and features. Have a look at the current price and see what you think.

Check price on Amazon ≈ £45

Our top picks at a glance

Thames & Kosmos Chemistry C500

4M Kidz Labs Weather Science

National Geographic Mega Crystal Growing Kit

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How we ranked these science kits

At a glance: top 10 compared

The full ranking

Thames & Kosmos Chemistry C500

Pros

Cons

Snap Circuits Classic SC-300

Pros

Cons

National Geographic Mega Crystal Growing Kit

Pros

Cons

Thames & Kosmos Physics Workshop

Pros

Cons

Learning Resources Primary Science Set

Pros

Cons

Galt Horrible Science Kit

Pros

Cons

Clementoni Galaxy Planetarium

Pros

Cons

4M Kidz Labs Weather Science

Pros

Cons

Thames & Kosmos Little Labs Kit

Pros

Cons

Galt Explore & Discover Kit

Pros

Cons

Frequently asked questions

The bottom line

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