Dynamic Earth - The National Museum of Natural History, Smithsonian Institution, offers this really interactive and engaging site to teach about science of the earth. The three main sections of the site include: Rocks at Earth's Surface, Rocks Below Earth's Surface, and Mining.
Geologic Time - (Geological Survey) - Learn about the age of the Earth and how scientists express these very old ages using relative and radiometric time scales.
Looking Down an Oil Well - Ever wonder what oil looks like underground, down deep, hundreds or thousands of feet below the surface, buried under millions of tons of rock and dirt? Learn about how oil is pulled out of the earth.
Smithsonian Institution Research Information System - The holdings of the Smithsonian’s archival library and specialized research collections can be found online in SIRIS. With over 1,700,000 records, SIRIS covers a wide variety of topical subjects from Art & Design, to History & Culture, to Science & Technology. Get information on innumerable historical events, scientific discoveries, cultural happenings, artistic styles, and social conditions.
Encyclopedia Smithsonian -This site has an awesome collection of science and technology resources.
Other Informational Resources
Aeronautics / Flight - (Department of Education) - Aviation, wind tunnels, Wright brothers, history of flight, and more.
America on the Move - America on the move explores the role of transportation in American history. Learn how railroads and other transportation helped bring communities together.
Federal Resources for Educational Excellence - Read all kinds of interesting documents from a variety of categories including science, math, history, and language art. Not to be missed!
Milestones of Flight - The National Air and Space Museum "Milestones of Flight" gallery exhibits some of the major "firsts" in aviation and space history. These are the machines that made the dream of flight possible.
NASA's Interactive Features - (National Aeronautics and Space Administration) - Download images, podcasts, and video clips as well access interactive online features.
Science Education Pages - NOAA - (National Data Buoy Center) - Find out answers to interesting questions like: Does water temperature differ between near-shore and offshore sites? What is air pressure? What are sea breezes?
Solar System Exploration Education Page - The solar system is about to get very busy. The action started in June with the launch of the first of two Mars rovers. Learn more about scientists, contests and events happening just for you.
Technology and Industry - Library of Congress - Explore these collections of papers, sound, and film about historical technological and industial events in America.
USGS and Science Education - U.S. Geological Survey provides scientific information intended to help educate the public about natural resources, natural hazards, geospatial data, and issues that affect our quality of life. This website provides links to selected online resources to support education and research.
The Water Cycle - This site is the most comprehensive Web site about "The Water Cycle" anywhere. It features a wonderful diagram of the natural water cycle and an in-depth discussion of each of the 15 topics on the diagram. And, the diagram is available in over 52 languages!
Weather - NOAA Education - (National Oceanic and Atmospheric Administration) - Find programs and guides to weather-related topics, such as hurricanes, drought, the Water Cycle and more.