Our dynamic earth [videorecvording] /
National Geographic Society educational film presentation.
- Washington, D.C. : The Society, c1979.
- 1 videocassette (23 min.) : sd., col. ; 1/2 in. + 2 identical teacher's guides.
Issued also as motion picture. VHS format. "51162"
Explains that the earth's crust is fragmented into 12 major plates; describes 3 kinds of plate behavior: divergence, convergence, and translation; and examines information about continental drift gathered from deep sea research.
Continental drift.
Plate tectonics.
Issued also as motion picture. VHS format. "51162"
Explains that the earth's crust is fragmented into 12 major plates; describes 3 kinds of plate behavior: divergence, convergence, and translation; and examines information about continental drift gathered from deep sea research.
Continental drift.
Plate tectonics.