[Free Registration/Login may be required to access all resource tools.] Covers seafloor spreading and the mechanism for continental drift.

[Free Registration/Login may be required to access all resource tools.] Covers seafloor spreading and the mechanism for continental drift.

How magnetic reversals on the seafloor provide evidence for seafloor spreading. [Free Registration/Login may be required to access all resource tools.]

[Free Registration/Login may be required to access all resource tools.] How magnetic reversals on the seafloor provide evidence for seafloor spreading.

Instructional module focusing on the development of plate tectonic theory. Discussion includes the evidence of Pangaea, and the processes of seafloor topography and seafloor spreading. Site also includes an interactive practice quiz and...

[Free Registration/Login may be required to access all resource tools.] A brief overview of the methods scientists use to study the ocean seafloor and the features that can be found there. Discusses the magnetic polarity of the seafloor...

[Free Registration/Login may be required to access all resource tools.] Describes features of the seafloor and how they are mapped by echo sounding. It touches upon the continental margin as well.

[Free Registration/Login may be required to access all resource tools.] Seafloor features and how scientists map them.

Discover Alfred Wegner's ideas relating to continental drift and seafloor spreading which are both evidence to the concept of plate tectonics.

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.

Detailed information about oceanic trenches, their structure, and how they are formed. Discusses the twenty trenches that exist around the world. Includes several labeled illustrations.

A webpage explaining the main features of plate tectonics. Understand what evidence exists for plate tectonics and the theory of Pangea. Also learn about the different types of boundaries. The end of the webpage includes more links that...

In this interactive tutorial you will learn about the theory of continental drift and why it was ultimately rejected. Then learn about the theory of plate tectonics and the evidence to support it. Lastly discover the types of boundaries...