350 pages ~ Our Solar System, Grade K-8 - St Aiden's Homeschool | Geography | Science | Worksheets | CurrClick = This product has been updated, December 2012, to include updated and current information as at time of research, regarding space exploration, a vocabulary worksheets bundle (separate ZIPs file for ease of downloading and printing) (for older students) and a complete FREE additional activity book for much younger students, which includes worksheets, dot to dot, mazes and more.