Explains what tectonic plates are, what a divergent plate boundary is and some facts about them, and gives examples of divergent plate boundaries.

[Free Registration/Login Required] Get a visual of how a divergent boundary can cause a rift valley to form in the ocean on this site. Test your knowledge of the mid-ocean ridge on this page.

A short tutorial on plate tectonics. Includes a video, background reading, three questions, fast facts, and a vocabulary list. Discusses the publication of the Tharp-Heezen map of the seafloor in 1977 which paved the way for a much...

A simulation that demonstrates divergent plate boundaries and seafloor spreading. A focus is on evidence of the Earth's normal and reversed polarity over geologic time in the rock record.

This interactive activity adapted from NASA features world maps that identify different sections of the Earth's crust called tectonic plates. The locations of different types of plate boundaries are also identified, including convergent,...

Instructional module focusing on plate tectonics. Discussion includes plates, plate boundaries, and driving forces. Site also includes an interactive practice quiz and links relating to the topic.

[Free Registration/Login may be required to access all resource tools.] Volcanoes most often occur at plate boundaries.

[Free Registration/Login may be required to access all resource tools.] Volcanoes most often occur at plate boundaries.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the earth's tectonic plates. Review questions are included at the bottom of the study guide.

[Free Registration/Login may be required to access all resource tools.] Earth's tectonic plates and how they move.

Listen to this podcast which explains the basics of plate tectonics on Earth. [0:39]

Animated simulations showing the three types of plate movements: divergent, convergent, and lateral plate boundaries.

[Free Registration/Login may be required to access all resource tools.] Discusses what a tectonic plate is and how scientists can recognize its edges, how the plates move by convection in the mantle, the three types of plate boundaries...

An easy-to-understand explanation of what plate tectonics is. Contains information about the inner parts of the Earth, the difference between the three types of plates, and numerous maps and illustrations.

This lesson is a writing assignment focussed on the use of data to support the theory of plate tectonics. It includes a scoresheet that was created for a calibrated peer review assignment. The assignment directs young scholars to...

Using your computer mouse you can simulate transforming, collisional, divergent and convergent plate boundaries. Descriptions of each plate boundary are also available.

The U.S. Geological Survey provides descriptions and illustrations for the plate boundaries of the Earth's surface.

A suite of lessons focusing on finding the fossil evidence for lithospheric plate tectonics. Inquiry-based exploration of plate tectonics evidence includes fossil distribution, earthquakes, and volcanoes.

In this interactive lesson you will learn about the theory of plate tectonics and the three types of plate boundaries that are responsible for Earth's geologic features.

This page has pictures and descriptions of different areas on Earth where the plates are spreading. Also includes links to more information on slow, medium, and fast moving plates.

A detailed discussion of plate tectonics. Looks at continental drift, types of tectonic plates and plate boundaries, and primary and secondary tectonic plates.

Gamers will test their knowledge of plate tectonics with this interactive. Know your divergent plate boundaries, hot spots, trenches, lithosphere, and other trivial facts of plate tectonics.

Complete biographical information with links to his theories. Contains links to interactives on plate tectonics.

Visit this site to learn more about the different types of plate boundaries. Includes color pictures and easy-to-understand examples of how and why plates move the way they do.