Geocycles

Planet Earth is an amazing machine, and we—and our future—are riding on it. This video introduces students to the Earth system's primary interacting subsystems (the biosphere, geosphere, hydrosphere, and atmosphere); the nitrogen, carbon, and water cycles; and three surface processes: weathering, mass-wasting, and erosion. The greenhouse effect, the impact of acid rain on the environment, and diminishing freshwater resources around the world are considered as well. A viewable/printable instructor's guide is available online. Correlates to National Science Education Standards, National Educational Technology Standards, and Standards for the English Language Arts. A Cambridge Educational Production. (19 minutes