Sparking an interest in astronomy in young children can lead to a life-long love of science. This glow-in-the-dark solar system helps you create a planetarium in your classroom, so your students can start to explore the cosmos. Set includes a Sun, 8 planets and the dwarf planet Pluto as well as an activity guide. Also includes hangers and 32ft. of plastic line to help create a ceiling display. Great way to springboard into space science lessons. Largest piece, the Sun, measures 4in. in diameter, with the other planets proportional in size. Sun glows in the dark after exposure to light. For students in grade 1 and higher. Educational Insights GeoSafari(R) Glow-In-The-Dark Solar System, Grade 1 - 2 is one of many available through Office Depot. Made by Educational Insights.