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This investigation will help you to:
Examine a geologic map of the United States.
Locate Ohio, as an example, on the geologic map of the U.S.
What are the most common rock types exposed at the surface in the United States?
Research the history of development of the Appalachian Mountains.
- This Dynamic Planet - USGS
Check out the story behind plate tectonics and piecing together the continents.
- Continents on the Move - NOVA (PBS)
Enjoy these detailed and well illustrated pages about how we understand that continents are on the move. - The PaleoMap Project
This site includes animations of moving continents through geologic time.
- Tapestry and Terrain - USGS
Study a new map of the United States that combines the geologic map with a physiographic map.