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.

From Thames & Kosmos, for ages 6 and up

Product Details

Build a colorful, mechanical, rotating model of our solar system
Wind up motor set planets in motion-no batteries required
Explore fundamental gear mechanics and discover a special type of gear called a planetary gear
Learn about planets' celestial orbits and tons of cool planetary facts
Assembly time: 1-2 hours

Product Details

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