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  • Thames & Kosmos Orbiting Solar System STEM Kit | Build a Rotating Solar System Model | Planets Revolve Using a Windup Motor | Explore Gear Ratios | Science Fairs | Difficulty Level: Intermediate
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Thames & Kosmos Orbiting Solar System STEM Kit | Build a Rotating Solar System Model | Planets Revolve Using a Windup Motor | Explore Gear Ratios | Science Fairs | Difficulty Level: Intermediate

4.1 out of 5 stars 218 ratings

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About this item

  • Build a colorful, mechanical, rotating model of our solar system!
  • The model uses a windup motor to set the planets in motion--no batteries required.
  • Explore fundamental gear mechanics and discover a special type of gear called a planetary gear.
  • Great for science fair projects, you'll learn about the planets' celestial orbits and tons of cool planetary facts.
  • Includes a built-in expansion slot should the mysterious Planet Nine be discovered!

Product information

Technical Details

Educational objective(s) ‎STEM
Language: ‎English
Model Number ‎550037
Number of pieces ‎28
Assembly Required ‎Yes
Batteries Required? ‎No
Batteries Included? ‎No
Material type(s) ‎Plastic
Remote control included? ‎No
Release date ‎July 18 2021
Manufacturer recommended age ‎6 years and up
Item model number ‎550037
Product Dimensions ‎25.4 x 6.35 x 27.94 cm; 58.97 g
ASIN ‎B08TVY9TMD

Additional Information

Customer Reviews
4.1 out of 5 stars 218 ratings

4.1 out of 5 stars
鶹 Rank
Date First Available May 5 2021
Manufacturer Thames & Kosmos
Place of Business PROVIDENCE, RI, 02903 US

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Thames & Kosmos Orbiting Solar System STEM Kit | Build a Rotating Solar System Model | Planets Revolve Using a Windup Motor | Explore Gear Ratios | Science Fairs | Difficulty Level: Intermediate


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This item: Thames & Kosmos Orbiting Solar System STEM Kit | Build a Rotating Solar System Model | Planets Revolve Using a Windup Motor | Explore Gear Ratios | Science Fairs | Difficulty Level: Intermediate
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Product description

Set the planets in motion with a flick of your wrist! Build a mechanical model of the solar system including the sun and eight planets (also known as an orrery), wind it up, and watch the planets revolve around the sun. Assemble this complex machine using snap-together plastic parts to learn how the gears and wind-up mechanism work to spin the model. Detail each planet with colorful, realistic-looking printed planet graphics. Discover how a special type of gear called a planetary gear is used to simulate the mesmerizing motion of the solar system. Learn about the order of the planets, their relative sizes, their rates of revolution around the sun, their appearance, and other planetary facts. Bonus: There’s a built-in expansion slot in case the mysterious Planet Nine is discovered! This kit includes full-color step-by-step illustrated assembly instructions.

Top Brand: Thames & Kosmos

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From the manufacturer

Thames & Kosmos was founded in 2001 by a science museum director and her son, who saw the great need and demand for better science education materials — resources for parents and their children that are more engaging, more effective, more relevant, and more fun. Generations of European children have discovered their enthusiasm for science through Kosmos science kits. Since 2001, Thames & Kosmos and Kosmos have teamed up to develop science kits for children in the United States and other English speaking markets around the world.

Mission - In Your Hands and Out of This World

Thames & Kosmos (T&K) was founded in 2001 with the mission of improving informal science education outside of the classroom by publishing high-quality science kits for children of all ages. T&K's mission has since expanded from its S.T.E.M. roots to encompass other educational branches as well, including arts and crafts, as well as the panoply of thinking and social skills that can be taught through games. T&K places an emphasis on teaching concepts and skills through tactile processes. Our vision is to give all children access to real, physical activities and projects that teach them about how things work; parents, grandparents, and teachers are active guides in these investigations. It is our firm belief that children who connect with the world around them grow up to be inquisitive adults, creative thinkers, and engaged citizens with confidence to pursue careers in science, technology, and engineering.

Important information

Safety Information

Warning. Not suitable for children under 3 years. Choking hazard — small parts may be swallowed or inhaled. Keep packaging and instructions as they contain important information.