A global hydrological database is considered essential for research and application-oriented hydrological and climatological projects at global, regional and basin scales. This includes water balance studies, investigation of trends in long-term hydrological time series, coupling of hydrological and meteorological models, flux of fresh water and pollutants into the oceans, and the coupling of runoff ... Full description.

This program provides scientific research and assessment to evaluate the effects of atmospheric deposition on aquatic and terrestrial ecosystems. A clickable map depicts locations of acid rain monitoring stations by state. This site also contains reports presenting data on acid rain trends and monitoring efforts as well as research performed on acid rain accumulation values. Information is also available ... Full description.

Give Water A Hand is a national watershed education program designed to involve young people in local environmental service projects. Following the steps in the Give Water A Hand Action Guide, your youth group or class plans and completes a community service project to protect and improve water resources. The free action guide is available for download here. Give Water A Hand program activities are ... Full description.

Materials presented here outline basic concepts related to groundwater, answering questions like "What is groundwater?" and "What is an aquifer?" More detailed topics include groundwater quality, sources of contamination, engineering problems presented by groundwater, and safeguards to the groundwater supply. A bibliography and links to other water-related sites are included. A French translation ... Full description.

This resource offers several avenues for students to evaluate environmental effects on water quality. The Bear Creek case study asks students to imagine they are owners of an environmental consulting firm who has been hired by a local catch-and-release campsite to find out why all the fish are dying, and come up with solutions to fix the problem. Biological, chemical and physical data for locations ... Full description.

This site is a special section of the Groundwater Foundation, dedicated to youth awareness and involvement with groundwater protection. There are tutorials, games, experiments, clubs, festivals, and "universities" designed expressly for students. Site pages: What is Groundwater, Kids Can Protect Groundwater Too, Easy Ways to Conserve H2O, Cool Groundwater Activity, The Awesome Aquifer Club, Meet G.W. ... Full description.

This online collaborative project is part of the Center for Improved Engineering and Science Education (CIESE) program, which has developed internet activities for the elementary, middle, and high school level student. Based on data collected by their household members and their classmates, students determine the average amount of water used by one person in a day. They compare this to the average ... Full description.

This lesson introduces primary students to the water cycle by having them help draw a picture of a lake ecosystem, adding human impacts that affect water quality. Students conclude by creating their own illustrations of human-induced changes to a lake ecosystem. There are suggested implementation directions and assessment strategies. There are links to related sites and suggestions for extending the ... Full description.

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.

This Environmental Protection Agency (EPA) site focuses on the science and impacts of global warming or climate change, and on actions that help address global warming. It features games, events, and links to other relevant sites for kids and educators, including activities on climate and weather and the greenhouse effect. Full description.