Discover the wonders of our earth with the Physical Geography DVD Series. Students will explore the major landforms of our world and look at the various forces that affect our physical environment including glaciers, volcanoes, gravity, rivers, lakes, oceans, wind, and temperature changes. This DVD examines the ways all these forces work together to shape our planet. Subjects covered include: Glaciers, volcanoes, running water, earthquakes, landslides, mountain building process, wind, gravity, temperature, mass wasting and weathering, and the principles of uniformitarianism. Grades 9-12. 20 minutes on DVD.