With good reason, there is a great deal of concern about the future of the Great Lakes. Collectively, these bodies of water account for 90 percent of the United States' and 20 percent of the world's surface fresh water....

This is the second part of a two-part exercise in which students perform an audit and analysis of energy consumption in their homes. In this part, students will estimate the amount of energy they use in their homes and...

This is the first part of a two-part exercise in which students perform an audit and analysis of energy consumption in their homes. This part provides an introduction to the uses of energy in our homes. Topics include...

This capstone activity uses the results of the Home Energy Audit and the Home Energy Analysis activities to investigate how changes in lifestyle affect the amount of energy used in the home. Students will listen to a...

This lesson provides an overview of water use in the industrialized world, including a discussion of the increasing need for conservation as populations grow and water supplies stay roughly constant. Users can listen to...