"Discover the wonders of our earth with the Physical Geography DVD Series. This DVD examines the characteristics of common rocks and minerals and teaches identification procedures. Students will learn about the physical properties of minerals including hardness, luster, and color, as well as the chemical compositions of important rock-forming minerals. Subjects covered include:how minerals and rocks effect the shape of the earth's surface; physical characteristics of minerals; how minerals are classified and how they are formed; exploring for minerals; the use and conservation of minerals in our society; and the main classification of rocks including sedimentary, metamorphic and igneous rocks." Grades 9-12. 25 minutes on DVD.