This clickable map of the United States defines different geographic features such as mountains, plains, islands, and deserts.

This resource will compare different regions of the world by climate, geography, animal life, and culture. The site focuses on the differences within the United States regions.

[Free Registration/Login Required] Overview: In this lesson, students will learn the basics about how tornadoes are formed, and when and where they are most likely to occur. They will learn that the United States is the country most...