The Fundamentals of Physical Geography website is designed to be a free online textbook for University and College students studying introductory Physical Geography. Version 1.0 of Fundamentals of Physical Geography contains over three hundred pages of information and more than four hundred 2-D illustrations, photographs, and animated graphics. Besides having the traditional text and 2-D graphics, ... Full description.

This United States Geological Survey (USGS) general interest publication presents a description of ground water in the U.S. This includes what ground water is, how it occurs, aquifers and wells, ground water quality and what affects it, and the state of U.S. ground water resources. Full description.

Simscience is a website devoted to areas of science where computer simulations are at the forefront of discovery. This interactive activity aids students in understanding structures (particularly dams), fracture mechanics, engineering, hydraulics and geotechnology. This site emphasizes analytical thinking, iterative design, multiple solutions and teamwork. Learning in this activity is mostly collaborative, ... Full description.

This site provides a non-mathematical introduction to the magnetism of the Earth, the Sun, the planets and their environments, following an historical thread. It is also available in French, Spanish, and German. Full description.

This non-mathematical, self-contained exposition of studies of the Earth's magnetic environment in space covers such topics as magnetism, electrons, eons and plasmas, the radiation belt, the sun and the solar wind, exploring earthspace, the dynamic magnetosphere, auroras, and interplanetary field lines. Many of the topics introduce the user to the related physics and astronomy, and are thus a useful ... Full description.

This U.S. Geological Survey (USGS) water resources site provides comprehensive coverage of water related issues, and includes several interactive quizzes and activities for children. Here you will find information on many aspects of water, along with pictures, data, maps, and an interactive center. Topics include: Earth's water, Water basics, Water use, Water Questions and Answers, Activity center, ... Full description.

The New Millennium Observatory (NeMO) is a seafloor observatory off the coast of Oregon, which studies the relationships between submarine volcanic events and the chemistry and distribution of hydrothermal vents and the biologic communities that depend on them. The research activities at NeMO provide an extraordinary educational opportunity, both from the daily reports from expeditions at sea and ... Full description.

The mission of the Arizona Water Resources Research Center (WRRC) is to facilitate research at Arizona universities on water problems of critical importance to the state and region. The WRRC works with public and private organizations and individuals, and provides information and services through a publications program and through outreach. The site includes: information on publications, research, ... Full description.

This tutorial traces the history of the telescope, beginning with Galileo's first small refractor, to the era of orbiting space telescopes. Topics include Galileo's trouble with the church over the observations he made with his new instrument, Sir Isaac Newton's invention of the reflecting telescope, and the development of technologies that made it possible to construct increasingly larger, more powerful ... Full description.

Imagine the Universe is dedicated to discussion about the universe, how it is evolving, and the kinds of objects and phenomena it contains. The site is intended for students age 14 and up and is a service of NASA's High-Energy Astrophysics Science Archive Research Center (HEASARC). Contained within this site are explanations of the concepts and principles used to study and understand the universe, ... Full description.