11 Best STEM Toys From Toddler To Tween!

Boy doing science experiment

We hope you love our recommendations! What we suggest is selected independently by the Kidadl team. If you purchase using the buy now button we may earn a small commission. This does not influence our choices. Please note: prices are correct and items are available at the time the article was published.

STEM kids' toys are games and activities that focus on science, technology, engineering, maths and sometimes even art. They help to encourage an interest in these areas, whilst also making them fun to learn about.

Kids' engineering toys, educational mathematical games, interactive technology products, crazy science kits and even creative robots mean that your little ones have a very well rounded understanding and will become the innovative, forward thinkers of the next generation. Starting at such a young age is the best thing, so why not buy something from our favourites listed below?

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Kidadl's Top Pick

Whilst all the great STEM toys on our list are highly recommended, if you're short on time, here's our top pick based on price, age-range and design.

1. GraviTrax Starter Set

GraviTrax Starter Set.

This GraviTrax kit includes over 100 different components, so you can be sure this toy will help with building, constructing, assembling and learning all in one. Designed as a marble construction and run, once your child gets started, they will need to consider engineering and maths, along with gravity, magnetism and kinetic energy, to ensure that their marble gets to the bottom quickly. That is the aim of the game!

As the kids are learning about key areas of STEM, they are also developing other key skills: spatial reasoning, planning, logical thinking and problem-solving. Therefore, this is a great way to bring learning to life.

Main Features

  • Price: £39.09
  • Age: 8+
  • 120 piece construction set
  • Set of blueprints
  • Instruction manual

Best Engineering Toys For Kids

2. LEGO Boost Creative Toolbox Robot Coding Kit

LEGO Boost Creative Toolbox Robot Coding Kit.

The fun with this LEGO robot is completely endless.... with 840 pieces and five different ways to build them! The models your little one can make range from Vernie the Robot, to Frankie the Cat, from MTR 4 to Guitar 4000, and even an auto builder form.  

The LEGO boost toolbox encourages a variety of skills; it allows your child to code interactive robot models, encourages good motor skills, hand-eye coordination and logical thinking. It is also great for engineering, in creating, building and assembling robots all by themselves (although you may need to be on hand for a little bit of help).

Main Features

  • Price: £123.99
  • Age: 3+
  • 2 motors
  • Activation button, tilt sensor and light
  • Encoded interactive motor
  • Move Hub with Bluetooth connectivity
  • Downloadable app

Best For Coding And Programming

3. Botley The Kids Coding Robot

Botley The Kids Coding Robot.

The Botley robot allows young children to engage in simple programming skills and technologies, which develops critical thinking and logical problem-solving. Once it has been programmed, Botley will be able to move, turn, avoid any objects and can do almost 80 steps in a single sequence.

Botley works by simple coding, which will encourage and inspire your child to become a young programmer and scientist.

Main Features

  • Price: £63.77
  • Age: 5+
  • Remote programmer
  • Detachable arms
  • 40 coding cards
  • 6 double-sided boards
  • Stickers
  • Obstacle accessories

Best STEM Toys For Toddlers

4. Magformers Magnetic Construction Set

Magformers Magnetic Construction Set.

This geometric, educational STEM toy, is a great way to introduce logical thinking and maths skills to your children from a very young age. They can easily watch shapes transform from 2D to 3D, make flat nets or even form long towers out of the geometric pieces. The possibilities are endless, and every new design is teaching your child something different.

They are joined by magnetic pieces so building and assembling is super easy. Your child can explore, enjoy and learn from a very young age.

Main Features

  • Price: £32.99
  • Age: 3+
  • 18 squares and 12 triangle pieces

Best STEM Toys For Young Children

5. Magna Tiles Kids Colour 32 Piece Set

Magna Tiles Kids Colour 32 Piece Set.

Magna Tiles is a fun, interactive set that develops STEM skills in young children. With 32 different colourful pieces, including squares and triangles, these can be joined together to build shapes, towers and crazy designs. The idea behind Magna tiles is to encourage imaginative play that fuses science, technology, engineering and maths altogether. Your child will be storming ahead in these areas once they start playing with STEM approved toys.

An original, 3D magnetic tile building product and brand guarantee that this is a good buy.

Main Features

  • Price: £44
  • Age: 3+
  • 32 clear colourful pieces

Best For Under 5s

6. Melissa And Doug Pattern Blocks And Boards

Melissa And Doug Pattern Blocks And Boards.

These patterned boards with a selection of colourful blocks and shapes is a great way to encourage your kids to think creatively and skilfully. There are five different boards to choose from and the pieces can be assembled on top of these patterns, or they can simply go wild and make their own shapes, blocks and lines.

This is a hands-on way to think about shapes, working on creative thinking and also encouraging problem-solving too. Your toddler will be learning so much with these super cool blocks and boards, and will be an extremely clever three-year-old in no time at all!

Main Features

  • Price: £14.99
  • Age: 3-6
  • 120 colourful blocks
  • 5 patterned boards

Best STEM Learning Toys

7. Tech Will Save Us Arcade Coder

Tech Will Save Us Arcade Coder.

This is a fun and exciting way to teach your kids how to code without overwhelming them. They can learn how to code but also about video game design and animation at the same time. The Arcade Coder means that as kids play on their video games, they can learn how they are created and the technology that goes into making them. Once your kids have learnt this, it is possible to make their own game too. A great buy for any inquisitive minds, but especially for those that have an eye for science, maths, engineering or technology.

This game, however, can only be used in conjunction with an iPad, so this is important to note before you buy.

Main Features

  • Price: £59.99
  • Age: 6+
  • Arcade coder
  • Game studio iOS app

Best For Kids STEM Science

8. Janod Human Body Magnet Game

Janod Human Body Magnet Game.

This Janod magnetic game makes learning all about the human body educational, interactive and fun. Your child constructs and then reconstructs the body, learning about the anatomy as they go. There are 76 different magnets to use, and they form a magnetic puzzle that joins together to create a toy replica of the human body.

The magnetic game makes STEM science much more exciting as it becomes hands-on, interactive and even fun to play together. Race each other putting the bodies together and see who wins, or time one another to see who can be the fastest.

Main Features

  • Price: £29.77
  • Age: 7-12
  • 76 magnets and board
  • 4 detailed cards (each in 12 different languages)
  • Wooden stick

Best STEM Building Toys

9. Kiwi Co Basketball Catapult

Kiwi Co Basketball Catapult.

This is a great engineers' toy, as your children can build themselves an adjustable catapult to play a game of mini basketball. Your little one must take into account the physics behind their design, and build their catapult to work with different angles and arcs for precision shooting. An excellent buy for budding engineers, this is also good for people interested in the science behind sports too.

Whilst Kiwi Co is an American brand, they ship to the UK and work in UK pounds, so the wonderful basketball catapult is available here too.

Main Features

  • Price: £15
  • Age: 8+
  • Catapult components
  • Mini basketball net and backdrop
  • Basketball court
  • Balls

Best Science Kits For Kids

10. Thames And Kosmos Chemistry Kit

Thames And Kosmos Chemistry Kit.

The brand provides a huge number of science kits for kids, such as the Botany Greenhouse and the Volcanoes and Earthquakes set. There are loads of STEM-based science kits to keep your children entertained, and this chemistry science kit is just one of them.

With this, there are 25 different science experiments available, which come with a 48-page manual and experiment guide to help you through each one. Your children can use basic household liquids and substances to create wacky, crazy experiments and they will soon be able to identify common reactions such as evaporation, condensation and crystallisation.

Main Features

  • Price: £34
  • Age: 8+
  • Test tubes
  • Beaker with pipette
  • Funnel and filters
  • Measuring spoons
  • Plaster

Best Stem Gifts For Girls

11. FabLab Invent-A-Scent Perfume Science

FabLab Invent-A-Scent Perfume Science.

Make science much more interesting by learning all about the art (and science) of creating the perfect perfume scent. Your children will learn how to mix top, bottom and middle fragrances to become a professional of perfume. All that needs to be done is to follow the instructional guide, and then let the scientist within make and create.

Main Features

  • Price: £11.40
  • Age: 8+
  • 9 mixing bottles
  • 5 pipettes
  • Fragrances: musk, pink flowers, fruity, green and citrus
  • Lab gloves
  • 12-page instruction booklet

Kidadl Best Buys selects the top parent-recommended products across the web for families of all ages. If you liked our suggestions for best STEM toys then why not take a look at our favourite diverse dolls, or for something different take a look at our kids sliders.



At Kidadl we pride ourselves on offering families original ideas to make the most of time spent together at home or out and about, wherever you are in the world. We strive to recommend the very best things that are suggested by our community and are things we would do ourselves - our aim is to be the trusted friend to parents.

We try our very best, but cannot guarantee perfection. We will always aim to give you accurate information at the date of publication - however, information does change, so it’s important you do your own research, double-check and make the decision that is right for your family.

Kidadl provides inspiration to entertain and educate your children. We recognise that not all activities and ideas are appropriate and suitable for all children and families or in all circumstances. Our recommended activities are based on age but these are a guide. We recommend that these ideas are used as inspiration, that ideas are undertaken with appropriate adult supervision, and that each adult uses their own discretion and knowledge of their children to consider the safety and suitability.

Kidadl cannot accept liability for the execution of these ideas, and parental supervision is advised at all times, as safety is paramount. Anyone using the information provided by Kidadl does so at their own risk and we can not accept liability if things go wrong.

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