The United States Geological Survey (USGS) presents the most common water measurements in science. These include: temperature, pH, specific conductance, turbidity, dissolved oxygen, hardness and suspended sediments. The...

A site with a collection of science experiments for kids to perform and learn about testing stream/creek water to discover what kind of organisms, pH, minerals, etc. are present in their water supply. Includes a number...

The United States Geological Survey's (USGS) real-time data on streamflow conditions from all over the United States. A map with colored dots depicts streamflow conditions that are updated every one to four hours daily.

This article discusses the effects of human activities on the interaction of ground water and surface water. Produced by the United States Geological Survey (USGS), this site provides solid textual content along with...

Presented by the United States Geological Survey, this website contains general facts and information pertaining to ground water. The site addresses ground water's role within the water cycle itself, it also shows how...