A discussion of the interactions between the four spheres of Earth and how they affect weather and climate. The slideshow is divided into two parts. The first deals with interactions between the atmosphere and the hydrosphere and the...

This site provides information and activities for classes to learn more about ozone depletion and UV radiation.

Energy is neither created nor destroyed - and yet the global demand for it continues to increase. But where does energy come from, and where does it go? This video examines the many ways in which energy cycles through our planet, from...

Students learn to identify the parts of the Earth system and the processes that connect them. They look for interconnections among components of the Earth system at the local level, using a study site close to their school.