Renewable energy systems are beginning to appear everywhere. Solar modules are creating "blue roofs" that convert the energy from the sun into household electricity. Solar thermal systems on roofs can generate hot water. Wind turbines catch breezes to provide even more electricity. Recommendations for saving energy, specifying systems for…

When the term "green" is used to describe a product or way of life, it means "environmentally friendly." Followers of the green movement believe that by reducing their own usage of resources, they can reduce their negative impact on the environment and influence culture to the same ends. The green movement has spread from individuals to companies…

An introductory approach to black holes is presented along with astronomical observational data pertaining to the presence of a supermassive black hole at the center of our galaxy. Concepts of conservation of energy and Kepler's third law are employed so students can apply formulas from their physics class to determine the mass of the black hole…

This learning activity provides an overview of the problem of clean energy sources and examination of alternatives. Student activity, quiz with answers, related activities, and nine references are provided. (SK)

Uses news reporting style to suggest widespread ecological movement favoring conservation education, starting with young students. Describes community action for environmental education policy changes. Lists possible community demands and environmental change strategies. Encourages students to take up environmental causes. (TES)

This simulation can be used to help secondary students examine the national and global energy issue. Students role-play various groups, including the Departments of Energy and Transportation, the U.S. Automobile Manufacturer's Association, oil lobby groups, conservation groups, citizen groups, a solar lobbying organization, and a nuclear power…

Discusses the efficient use of energy. Compares reserves and pollutants generated by natural gas, oil, and coal. Points out some alternative energy sources and ways for improving energy efficiency in buildings, industrial processes, and transportation. Describes some problems in developing and developed countries. (YP)