Build a mechanical model of the solar system, including the sun and 8 planets, 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
Kids will learn about the order of the planets, their relative sizes, their rates of revolution around the sun, their appearance, and other planetary facts
Includes 59 pieces and a full-color step-by-step illustrated instructions
