Journey through our solar system and learn what makes it work with this wonderful activity set that uses durable cardboard models to explain the moon and its phases, the constellations, how to use a sextant to measure stars, celestial mechanics and more. -- Includes model sextant, astrolabe, sun model, moon model, space shuttle model, 10 3D planets, 10 fact sheets, 38" x 27" solar system poster, model planetarium.
