Discover the Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series. Explore the major landforms of our world with spectacular video footage. Look at the various forces that affect our physical environment including GLACIERS, VOLCANOES, GRAVITY, RIVERS, LAKES AND OCEANS, MOVEMENT IN THE EARTH, WIND AND TEMPERATURE CHANGES. This program is a superb introduction to the ways all these forces work together to shape our planet. Subjects covered include: An overview of the major forces which shape our earth, Glaciers, volcanoes, running water, earthquakes, landslides, mountain building process, Wind, gravity, temperature, mass wasting and weathering, a look at the principles of uniformitarian's which states that "The present is key to the past."