Colorful 3-D views of the kidneys are shown in detail, illustrating a magnified nephron. The dissected kidney is enlarged to illustrate the cortex, pyramid, calyx, and papilla. This Model Activity Set includes a full-color 24" x 18" markable model of durable vinyl and an activity guide with background information, basic understandings, teacher-developed activities, a glossary, a key to model structures, color transparencies and a black line master. For Grades 3-12 and Ages 8-18.