This classroom demonstration illustrates the amount of water stored in various parts of the Earth system in a straightforward manner. Students estimate the proportions of water in the oceans, icecaps and glaciers, groundwater, freshwater lakes, inland seas, soil moisture, atmosphere, and rivers. Then they fill beakers with the actual proportion and discuss what elements of the activity were surprising to them. Information on flash floods and flood preparedness and safety are included.

Students build a model of a watershed, apply water to the model, and explore what happens when elements of the watershed are changed.

What Is Water? is an introductory lesson that introduces students to the properties of water and its presents in the environment.

This activity is a field investigation where students investigate the water quality of a local stream or pond.

This activity is a water study investigation showing how biotic and abiotic factors are influenced by human activity.

This short demonstration will open students' eyes to the distribution of various water sources on our Earth, but also the limited amount of fresh water for our daily use.

This activity is a field activity where students will perform various water quality tests to determine the types of organisms that live in a local pond and stream, and the characteristics that those aquatic environments seem to have that the organisms favor.

This video segment examines the issue of climate change from the perspective of Native Americans. The video segment was adapted from a student video produced at Haskell Indian Nations University in Lawrence, Kansas.

This interactive world map shows the impact of a global temperature rise of 4 degrees Celsius on a variety of factors including agriculture, marine life, fires, weather patterns, and health. Hot Spots can be clicked on to get more specific information about the problems in different regions.

This poster, viewable online, highlights some of the impacts of a global-average temperature rise of 4 degrees C above the pre-industrial age climate.