The science guy explains the process of erosion and how this weathering causes changes to the surface of the Earth. Presents a variety of examples to illustrate how water, sand, wind, and chemical erosion alter the Earth's structural geology. Explores how erosion is an ongoing process that is constantly modifying the landscape. Also demonstrates how soil is formed from the sediments of eroding rocks.

Award-winning series explores the world of science and nature using humor, music, experiments, and interviews with scientists. DVD features fully indexed chapters correlated to National Science Standards, downloadable teacher's guide, interactive glossary and quiz, Internet links, and bonus materials.

1. Big idea -- 2. Try this! : sand bucket erosion -- 3. Try this! : frozen erosion -- 4. Music video