Thames & Kosmos

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When purchasing a product, price is the consumer's primary concern. At present, Thames & Kosmos has 306 products for sale. Thames & Kosmos products range in price from $10.77 to $46.09, and the average price of all the products is about $32.48.

You can confidently purchase Thames & Kosmos products on Amazon.com. The brand holds an average rating of 4.4, testifying to its excellent reputation.

Thames & Kosmos Best Sellers

Last Updated: Jan 8, 2026

Thames & Kosmos Mega Cyborg Hand STEM Experiment Kit | Build Your Own GIANT Hydraulic Amazing Gripping Capabilities Adjustable for Different Sizes Learn Pneumatic Systems

Educational Science Kits

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Build your own awesome, wearable mechanical hand that you operate with your own fingers.

No motors, no batteries — just the power of air pressure, water, and your own hands!

Hydraulic pistons enable the mechanical fingers to open and close and grip objects with enough force to lift them. Every finger joint can be adjusted to different angles for precision movement.

Three configurations: right hand, left hand, and claw-like; adjustable to fit virtually any human hand.

Learn how pneumatic and hydraulic systems are used in industrial robots such as automobile components..2021 The Toy Association's STEAM Toy Of The Year Winner

Thames & Kosmos Roller Coaster Engineering STEM Kit | Design, Build, Experiment w/ Working Roller Coaster Models | Explore Physics, Forces, Motion, Energy, Velocity & More | Solve Building Challenges

Educational Science Kits

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Design and build your own working roller coaster models.

Conduct fun, hands-on physics experiments to learn about force, motion, energy, and more.

Complete challenges that require you to build roller coasters of all shapes and sizes.

The plastic building system is durable, easy-to-assemble, and reusable.

The 32-page, full-color manual guides building and experimentation with step-by-step assembly instructions and scientific explanations.

Thames & Kosmos My Robotic Pet: Coding Chameleon STEM Building & Experiment Kit | Color-Sensing Coding Robot for Boys & Girls Ages 8+, Screen-Free Educational Fun, Robotic Reptile with 3 Play Modes

Educational Science Kits

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BUILD, CODE, PLAY & LEARN: Construct a robotic reptile pal that responds to your gestures, changes colors, and automatically fires and retracts its tongue!

INNOVATIVE ENGINEERING: The expertly designed 15-inch-long model includes articulated eyes, torso, and leg joints to simulate realistic movements.

FULLY EQUIPPED FOR UNPLUGGED CODING LESSONS: The robot utilizes a color sensor, infrared sensor, and RGB LEDs that allow kids to use physical colored action cards to program the robot to move and react in different ways; no screens, devices, or software required!

THREE UNIQUE PLAY MODES: In Coding Mode, use the action cards to program your pet to carry out a series of movements; in Wild Mode, your chameleon will camouflage and change its color to match its surroundings; in Pet Mode, this one-of-a-kind robotic reptile reacts to your touch!

AUTHENTIC LEARNING WITH COMPREHENSIVE GUIDE: The 48-page manual guides kids through assembly (ages 8+ with help from an adult; 12+ for independent play), encourages exploration of robotic components, and teaches about how nature can inspire, improve, and solve engineering design problems.

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Thames & Kosmos Structural Engineering: Bridges & Skyscrapers | Science & Engineering Kit | Build 20 Models | Learn about Force, Load, Compression, Tension | Parents' Choice Gold Award Winner, Blue

Educational Science Kits

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Build 20 different models that each teach about force, load, compression, tension and more

Over 285 interchangeable building pieces

Includes 36-page, illustrated experiment manual and Assembly guide

Skill level: Intermediate

Thames & Kosmos Hydraulic Boxing Bots STEM Experiment Kit | Build Two Hydraulic-Powered Boxing Robots! | Explore Hydraulic, Water-Powered Systems | Challenge a Friend to a Robot Duel!

Educational Science Kits

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Build two boxing robots that are powered by hydraulics!

Learn about the physics, design, and components of hydraulic (water-powered) mechanisms, including gears, cylinders, and pistons.

The upper and lower body move independently to simulate real-life movements, allowing these boxing bots to dodge, jab, and punch with accuracy.

Kit includes the parts to build two boxing bots plus a scoreboard so that you can challenge a friend to a hydraulic robot battle.

Introduces important physics and engineering lessons through a fun, hands-on building project with a big punch!

Featured in Purdue University's 2023 INSPIRE Engineering Gift Guide

Thames and Kosmos Gumball Machine Maker

Educational Science Kits

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Build your own gumball machine with this science kit that's part marble run, Part roller coaster, Part pinball machine!

Each segment of track teaches a different lesson in mechanical physics, exploring topics such as simple machines, force, motion, momentum, gravity, Newton's laws, energy transfer, and more.

Track segments are modular and can be easily moved around to create an almost limitless number of different gumball machines.

As they roll down the tracks, the gumballs perform cool stunts via a pulley lift, pendulum, funnel, trampoline, pinball launcher, domino slide, and more!

The kit works with standard machine-size, 16-mm (5/8-inch) gumballs, the a small supply of gumballs are included to get you started.

A parents' Choice silver award winner

Skill Level: Novice

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Thames & Kosmos Pinball Machine Maker STEM Experiment Kit Toy of the Year Finalist - Build a Reconfigurable Pinball Machine, Explore Physics, Force, Motion, Gravity, Simple Machines, Gumballs Included

Educational Science Kits

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Build your own customizable pinball machine that uses edible gumballs as the pinballs!

The reconfigurable and reusable building system includes all kinds of obstacles like bumpers, slingshots, bells, ramps, and more; move them around to change up the playing field!

A fun, gamified approach to learning about physics concepts like force, motion, gravity, simple machines, collisions, and more.

Trial-and-error experiments promote hands-on learning, encourage creative problem-solving, and provide hours of open-ended play that's different every time!

Gumballs included! The kit comes with approximately 45 delicious standard machine-size gumballs.

A 2025 Toy of the Year Finalist!

Included on the Toy Insider's 2024 STEM 10 List and selected as a 2024 TTPM Best Artisan Toy

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Gecko Run Marble Run Starter Set by Thames & Kosmos, Toy of The Year Winner - 63 Piece Vertical Marble Run, Flexible Tracks | Fast, No-Mess Setup, Residue-Free Nano-Adhesive Pads, Creative Play

Marble Runs

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Innovative: Design your own vertical marble runs with this specially designed system of flexible tracks that does not require any support structures, allowing you to build higher with fewer pieces.

Intuitive & Mess-free: Tracks attach to smooth surfaces with the help of clever nano-adhesive pads that create a strong but temporary bond; the pads are not glue-based and can be quickly and easily repositioned without leaving behind damage or sticky residue.

Open-ended & Educational: Combine different configurations and environments for endless possibilities; develop engineering and problem-solving skills and see physics in action.

Tracks are made from renewable raw materials.

What's Included: The Starter Set comes with over 60 pieces, including 12 tracks, 7 marbles, 40 nano-adhesive pads, levers, a funnel, and more.

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Thames & Kosmos Ooze Labs Chemistry Station Science Experiment Kit, 20 Non-Hazardous Experiments Including Safe Slime, Chromatography, Acids, Bases & More, Multi-Color

Educational Science Kits

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Play the role of chemist with this huge, colorful, functional lab station!

Create glowing slime, fizzing reactions, Oozing Bubbles, colorful chromatography, and more!

With 57 pieces, This kit has everything you need to conduct experiments like a real scientist, including beakers, test tubes, flasks, pipettes, and more.

Printed experiment cards clip onto the lab station for easy reference and additional experiments and scientific explanations are included in a separate 16-page, full-color manual.

Includes non-hazardous chemicals; does not contain borax.

A parents' Choice silver honor award winner

Skill level: Intermediate

Thames & Kosmos Bionic Robotic Arm STEM Experiment Kit, Toy of The Year Finalist, Build a Mechanical Arm, No Batteries/Motors Required | Innovative System | Ages 10+ with Help, 14+ Independent Play

Educational Science Kits

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Assemble a cutting-edge, working toy robotic arm from nearly 300 pieces!

No motors or electricity required! The innovative system is controlled by a pair of joysticks that pull and release a network of nylon cables to enable intuitive and precise movements.

The buttons on the top of the joysticks open, close, and rotate the arm and the claw that attaches to the end of it; challenge yourself or friends to grab, move, and release various objects!

A full-color, step-by-step manual guides assembly and experimentation and provides engaging scientific info about robotic arms in the real-world, biomimicry, and mechanical engineering.

A fun, informative STEM building challenge for kids ages 10+ with help or 14+ for independent play

A 2025 Educational Toy of the Year Finalist!

Best Product's 2024 Robot of the Year, A 2024 Toy Insider Top Holiday Toy

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Thames & Kosmos Mechanical Engineering: Machines & Vehicles STEM Experiment Kit | Build 20 Mechanical Models, Explore Physics of Force & Motion | Hands-on, Introductory Science Learning for Ages 8+

Educational Science Kits

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THE SCIENCE OF MACHINES & VEHICLES: Kids ages 8-14+ get an introduction to mechanical engineering through 20 hands-on building projects and 22 supplemental experiments.

DURABLE, REUSABLE BUILDING SYSTEM: Combine and reconfigure the components into fun, functional models, including a tightrope walker, elevator, crane, windmill, all-wheel drive ATV, and more!

INTRODUCTORY KIT PACKED WITH EDUCATIONAL VALUE: Through building projects and experiments, you'll learn about forces, gravity, weight, simple machines, storing and converting energy, momentum and gears, physics in the solar system, and more!

REAL-WORLD CONNECTIONS: Discover how the science of mechanical engineering impacts our everyday lives and start to recognize its importance at construction sites, on rollercoaster rides, in automotive engineering, and more.

COMPREHENSIVE MANUAL: The 80-page, full-color experiment manual guides the assembly of models through step-by-step, illustrated instructions and provides digestible, easy-to-understand explanations.

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Thames & Kosmos Catapult Engineering STEM Maker Kit, Build 6 Models of Unique Medieval Machines, Explore Mechanical Physics, Includes Safe Foam Balls & Soft-Tipped Projectiles, Suitable for Ages 8+

Educational Science Kits

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Build six sleek, functional toy models of catapults, trebuchets, and launchers.

Models include classic seige devices from medieval times: crossbow, reverse-draw crossbow, onager, catapult, trebuchet, and ballista.

The 32-page, full-color illustrated manual includes detailed assembly instructions as well as experiments that demonstrate physics and engineering topics like force, energy, motion, and trajectory.

Specially designed and tested for safety, the kit includes soft foam balls and foam-tipped projectiles; building components are designed to allow only the included projectiles to be inserted.

Bonus activities! Also includes cardboard target blocks to test your aim, and the box itself transforms into a castle kids can color and decorate to set the scene for their medieval physics adventures!

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Thames & Kosmos Mega Cyborg Hydro Blaster STEM Experiment Kit, Toy of The Year Finalist - Build a Wearable Hydraulic-Powered Water Toy & Gripper, Shoots Water Up to 20 Feet, Transforms Into 5 Models

Educational Science Kits

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Build your own awesome, wearable hydraulic-powered water blaster from over 150 pieces and let the epic water battles begin!

Perfect for warm weather outdoor play, soak your opponents from afar with this unique and powerful water blaster that shoots streams of water up to 20 feet!

Utilize the claw mechanism to grab objects in your path; all features operate thanks to the toy's hydraulic system--no motors or electricity required!

Ergonomically designed to fit the hands of kids and adults alike, as well as left- and right-handed users, you can also transform your blaster into five fun configurations: a crossbow, gripper claw, shield, boomerang, and sword.

Explore fundamental physics concepts including the compressibility of air and water, motion, and force, as well as mechanical components such as gears, levers, and linkages.

A 2025 Outdoor Toy of the Year Finalist!

A 2024 Toy Insider Top Holiday Toy

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Thames & Kosmos Dinosaur Gummy Candy Lab, Tasty Labs STEM Experiment Kit, Make Your Own Dinosaur-Shaped Gummies, Explore Chemistry in Cooking, Safe to Eat, Ages 6+, Made in USA

Educational Science Kits

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Make up to 72 delicious and fun dinosaur-shaped gummy candies!

Kit includes all food ingredients needed to make a gelatin mixture in two yummy flavors and colors: purple mixed berry and green watermelon; add citric acid for sour gummies!

The gummy mold includes 8 different dino shapes: T. rex, Pterodactyl, Triceratops, Spinosaurus, Stegosaurus, Ankylosaurus, Plesiosaur, and Brachiosaurus.

Investigate the chemistry of candy making and fundamental STEM concepts like measurements, conversions, phases of matter, polymers, and more.

A wholesome, fun, educational activity that kids will enjoy and adults can feel good about giving!

Made in the USA

A 2024 Toy Insider Top Summer Toy

Thames & Kosmos Ultra Bionic Blaster STEM Experiment Kit | Construct a Robotic Foam Dart Blasting Glove | Challenging Build, Learn About Mechanical Technology & Engineering

Educational Science Kits

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Build your own awesome, wearable, air-powered robotic blaster glove!

Learn about pneumatic systems and the physics of air; no motors or batteries required!

Adjusts to fit different hand sizes and kit includes six standard-size foam darts.

A 20-page, full-color manual guides the challenging assembly and includes QR codes to troubleshooting tips and assembly videos.

For ages 10+ with help or 12+ for independent play; high play value, even after the initial construction is complete!

A 2022 ASTRA Best Toys for Kids Winner (Science category)

Thames & Kosmos SolarBots: Cosmic Explorers STEM Experiment Kit | Build 5 Solar-Powered Robots That Walk, Crawl, Spin & Roll, No Batteries Required, Solar Panel Included, Explore Solar Technology

Solar Power Kits

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SOLAR POWER TECHNOLOGY: The kit includes all materials needed to build five out-of-this-world robots that are powered by the sun--batteries not required!

INNOVATIVE BUILDING SYSTEM: Assemble the main robot, Helio, and four robot vehicle bases simultaneously—no disassembly and reassembly required.

QUICK-SWAP, CLICK-AND-GO ROBOTS: Build Helio with an electric motor, powered by the included solar panel, and quickly and easily click it in and out of the different bases to create four additional robots that move in different ways: the Walking Bot, a two-legged robot that loves to explore; the Trike Bot, a three-wheeled robot that adds speed and steering as it rolls around; a Bug Bot with six legs for stability and traction; and the Orbiting Platform, a resting spot for Helio to rotate gently in place.

REAL-WORLD CONNECTIONS: Through the hands-on building activities, kids will explore relevant technology like solar power, and the importance of the Sun's energy in our everyday lives.

FOR A RANGE OF AGES & ENVIRONMENTS: The 36-page, full-color manual guides kids through assembly (ages 6+ with help from an adult; 9+ for independent play) and use; the solar panel powers the robots when exposed to direct sunlight or with a light source of 50 Watts or more (e.g. a halogen lamp or incandescent bulb) when used indoors.

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Thames & Kosmos RoboRails STEM Kit, Toy of The Year Winner, Build a Robot Monorail System w/Splitters, Cross Switch, Seesaw Mechanism, Modern-Day Model Train Set, Explore Physics, Gyroscopic Forces

Educational Science Kits

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Build a robot that zooms along a monorail track on one wheel thanks to a motorized gyroscope unit with a clever ball-bearing weight system that reduces friction, allowing the robot to stay balanced for longer.

Taking classic model train sets into the future, kids can quickly and easily reconfigure the snap-together track segments into countless possibilities; assemble the 26 track designs suggested in the manual, or create your own!

Three unique connectors (the seesaw, (2) 3-way splitters, and a cross switch) add fun twists, turns, and obstacles to your routes!

The 32-page, full-color illustrated manual elevates this fun building set into a valuable learning tool, providing step-by-step assembly instructions as well as scientific explanations that dive into important physics concepts like rotational motion, acceleration, angular momentum, and more.

The open-ended design promotes critical thinking and problem-solving skills as well as imagination and creativity.

The 2025 Vehicle of the Year Award Winner

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Thames & Kosmos Architectural Engineering | Science Experiment & Model Building Kit | Build 26 Models of Structures & Structural Elements | A Parents' Choice Gold Award Winner 14.6 Inches

Educational Science Kits

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Play the role of architect and engineer as you build over 20 models of structural elements and real-world buildings!

Start with Basic structures like trusses, arches, and domes, and move on to scaled-down models of real-world buildings!

New flexible building pieces mimic steel frames; All plastic building parts are compatible with other Thames & Kosmos engineering and physics kits.

Explore the field of architectural design and learn about modern day building materials.

For ages 8+, includes a 44-page, full-color manual that guides building exercises and encourages kids to dream up their own designs.

A parents' Choice Gold award winner

Thames & Kosmos 2-ft Tall Candy Vending Machine STEM Kit | Build Toy Vending Machine with 10 Gravity & Motion Experiments | Coin Sorting Bank | Math & Engineering Lessons

Educational Science Kits

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Construct your own toy vending machine that sorts coins, dispenses candy or other small prizes, and doubles as a coin bank!

Experiment to make the coins perform cool tricks and stunts in the customizable coin track area.

Learn about gears, gravity, forces, motion, collisions, and more — even some simple math lessons with money.

The machine can be refilled with your own treats and prizes for long-lasting fun.

A 16-page, full-color step-by-step manual guides assembly and experiments and an assembly video is available via a QR code in the manual; For ages 8+ with help or 10+ for independent play

A 2022 ASTRA Best Toys for Kids finalist

A 2022 Toy of the Year Award finalist (Construction category)

Thames & Kosmos Simple Machines Science Experiment & Model Building Kit, Introduction to Mechanical Physics, Build 26 Models to Investigate The 6 Classic Simple Machines

Toy Building Sets Brain Flakes

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Through 26 model-building exercise, gain hands-on experience with gears and all six classic simple machines: wheels and axles, levers, pulleys, inclined Planes, screws, and wedges.

Durable, modular construction system is compatible with building pieces in other construction, physics, and engineering kits from Thames & Kosmos.

Learn how simple machines are all around us (the flagpole at school, the wheelbarrow in your backyard, The seesaw at the playground!) and how they're used to make complex tasks easier to do.

Includes a specially designed spring scale so that you can measure how the machines change the direction and magnitude of forces.

A 32-page, full-color illustrated manual guides model building with step-by-step instructions and provides fun, engaging scientific information.

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Thames & Kosmos FAQs

Is Thames & Kosmos Legit?

Yes, Thames & Kosmos is a legitmate brand on Amazon. After conducting a comprehensive analysis of 10,504 customer reviews for Thames & Kosmos products on Amazon, we have determined its average rating. Offering great value and satisfying quality, Thames & Kosmos has achieved a respectable rating of 4.4 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from Thames & Kosmos on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

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