Contains several live-action movies and nice graphics. An online chemistry textbook to guide you through the basics of chemistry. Also has videos you can download and recommended chemistry experiments. Good information about how earthquakes happen, famous earthquakes in history, and current maps showing recent earthquake activity. It covers both historical and 20 th century people, and shows biographical resources you can use to find more information about each person.
Some explanations come with links to other related web sites.
Provided by Cornell University. Here's a wonderful source for information on naturally occurring phenomena in the world.