TREND enterprises, Inc. T-38929 Earth Science Learning Charts Combo Pack, Set of 5 Convenient, well-designed five-chart pack for Grades 2-9 helps present key geology concepts. Includes: Solar System, Weather Factors, Layers of the Earth, Geography Terms, and Water Cycle. Extra Value: Back of charts feature reproducible activities, subject information, and helpful tips. 17" x 22" size appropriate for classrooms as well as smaller workspaces & home use.