A marine environment covers the majority of the earth but is arguably the least understood. Teach young scientists about the characteristics of oceans and ocean species using an interactive online lesson. The in-person or remote learning...

Detailed geographical information on any country is available at this site. Within the World Map section, you can get facts and figures about each country's geography, demographics, government, political system, flags, historical and...

In 1800, the United States was made up of 16 states, all east of the Appalachians, and most people lived within 50 miles of the Atlantic. Oceans and rivers were the nations' highways, providing the only viable way to travel long...