In this activity, younger students investigate the effects of acid rain. They will view photos of buildings and statues that have been damaged by acid rain, and conduct an experiment in which they treat a chalk 'statue' with vinegar and observe the effects. Full description.

Through this activity, students learn about atmospheric carbon dioxide and its role in the greenhouse effect. They can identify the leading producers of carbon dioxide emissions and read about the global climate conference that was held in Kyoto, Japan, in 1997 to set international limits on these emissions. The material provides information to increase students' understanding of the implications ... Full description.

This database of water-related educational materials contains information on 160 nationally reviewed curricula for grades K-12. The database can be searched alphabetically, by grade level, or by topic and/or instructional format. The information provided includes a detailed description, costs (if any), and contact information for obtaining a desired curriculum. Full description.

The National Weather Service provides weather and marine data from buoys surrounding North America, the Carribean, and Great Britain. Historical and realtime data are featured. Data include wind, waves, atmospheric pressure, air and water temperature, and dewpoint. Frequently Asked Questions explain how the marine stations collect and transmit data, how quality is assured, and how the National Data ... Full description.