Full-color photographs of 36 clouds and related phenomena make this chart a fascinating reference for all of your students. Each formation is classified by both elevation and group, so students see the difference between low, medium, and high-altitude clouds in the cumulus family, stratus family and other groups. Pictures of lesser-known formations, such as a sun pillar, corona, halo and “flying saucer” cloud spark student interest in cloud appearance and structure, while detailed captions offer additional information concerning the characteristics of each formation. Size: 34" x 25".