This web site, by HowStuffWorks.com, gives a complete explanation with pictures and diagrams of septic systems and waste water treatment plants and how they work. Also explains why one system may be chosen instead of the...

With a growing number of interactive websites, the Smithsonian National Museum is evolving into a hub for national and international electronic education. There are over twenty online exhibits, each containing extensive...

Over 400 science projects, drafted by a professor of Science, are published on this educational Web site. Projects from various scientific fields include animals, atoms, ecology, meteorology, microorganisms, and more....

There are many great ways to learn about the geological history of California, including reading some of the works by noted writer John McPhee. Additionally, the state of California's Department of Conservation has...

The Dung File is a collection of references relevant to the archaeological and paleoenvironmental analysis of coprolites and latrine fills, with a focus on North American research. Compiled by the University of Alberta's...