This Discovery Channel website features a large assortment of fascinating information about the physical environment of the earth. The website's live cam shows images of Mexico's Popocatepetl, one the most active volcanoes. Visitors can observe the big craters created on the earth by past meteors while students can create their own earthquake. And, users can find daily pictures and journal...

This website addresses NASA's goal of embarking on a series of missions to find and characterize planets around stars other than the sun to help determine if life exists on other planets. Users can view the fascinating video summarizing the missions and can take an interactive quiz to test their knowledge of the realities of extraterrestrial life and space exploration. The site presents an...

The USGS and NASA have teamed up to bring the public stunning images of the Earth taken by the Landsat-7 satellite and the Terra Satellite's Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Visitors can browse the images by continent or alphabetically. The images can be used as supplementary materials during educational lectures about rock outcrops, deserts, deltas, clouds,...

The GLOBE Programme aims to enhance environmental awareness, scientific understanding of the Earth, and students' skills in science, geography, and additional subjects. Teachers and students can find hydrology, atmosphere, soil science, and GPS activities. The website offers monthly and daily atmospheric data collected from participating schools. Educators can learn how their students can become...