This lab activity provides students with the opportunity to investigate permeability and porosity in a simple groundwater system. Gravel and sand are the primary materials used for observation and comparison of flow rates. Students observe, take measurements, answer questions, draw diagrams, plot data, and define terms such as aquifer and aquiclude. Mathematical concepts of volume and flow rate are ... Full description.

This set of introductory materials outlines the basic concepts of groundwater and hydrology. Graphics with accompanying definitions explain basic hydrologic terms such as aquifer, recharge, and discharge. There are also news articles, a reading list, a questionnaire, and a quiz. Full description.

Groundwater is an important and bountiful source of fresh water for irrigation, industry, and drinking. This resource covers basic concepts of the hydrologic cycle, hydrogeology, supply and demand, and contaminants that can affect water quality. Suggestions for community action to help protect and conserve groundwater are outlined, along with federal, state, and local programs that are now in place ... Full description.

These activities explain the management of ground water resources using a balanced approach, focusing on interdependencies in the environment. All activities can be performed using readily available materials. Fact sheets, reference materials, and a glossary of terms are provided. The activities cover such topics as groundwater basics, movement of water in aquifers, recharge and discharge, how a well ... Full description.

This interactive map depicts real-time steam flow compared to historical stream flow for selected gauging stations in the United States and Puerto Rico. Users may select a state and choose a list of all stations in the state, a state map, or a list of the nearest stations. The map tracks short-term changes (over several hours) in rivers and streams. Its appearance may change very little from one hour ... Full description.

The classroom activities presented here are designed to make learning and demonstrating non-point source water pollution concepts exciting and fun. The activities may be used alone or as extensions to an existing curriculum. Concepts include the water cycle, drinking water source and treatment, groundwater and aquifers, surface water and watershed protection. A glossary and correlation to the 1994 ... Full description.

This database provides access to discharge data from the original UNESCO river archive in a digital format for use by researchers and planners in the water sciences community. While this is a very good global resource, it does not present information on rivers in the United States. Full description.

As part of the GLOBE program's 2003 Teacher's Guide, this site provides information and activities related to understanding hydrology. Sections featuring protocols and activities cover collecting water samples, conducting tests such as dissolved oxygen, conductivity and salinity, modeling a local watershed, comparing local water to global data, modeling water balance and looking at how water chemistry ... Full description.

Finding water for growing urban areas and agricultural use is a major problem in most regions. This site provides the user with the opportunity to examine many of the options available to communities to expand their water resources base, as well as the pros and cons of each option. Specifically, the activity focuses on the following options: dam a river and create a reservoir to store water, dig more ... Full description.

This project examines the entire water system of an ancient city, including supply, distribution, use, and drainage. Until now, individual water system elements have been studied as archaeological objects, but infrequently subjected to analysis by such disciplines as fluids engineering and urban history. This work is part of two larger long-term studies, the first concerning the relationship between ... Full description.