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Here is an animation for middle and high school students that depicts volcanism at a mid-ocean ridge. An introductory paragraph describes what occurs at a rift zone as two plates diverge and magma repeatedly moves up through the rift. The animation consists of two coordinated movie clips--one that shows a cross section of a rift zone and another that provides a view from above the rift. These clips show the volcanism and seafloor spreading that take place as two oceanic plates move apart. Students are supplied with control buttons to play, pause, and scroll through the animation. Labels indicate the key features in the animation. Copyright 2005 Eisenhower National Clearinghouse

Summary

Subject keyword(s)Astronomy, Earth and space science, Earth processes, Earth science, Earth system structure, Geology, Geoscience, Physical sciences, Plate tectonics, Science, Space Science, Space sciences, Volcanoes
Grade levelMiddle School, High School, Informal Education
Intended audienceLearner
Resource typeAudio/Visual, Instructional Material
Resource formattext, text/html
RightsSee site for guidelines governing the use, restrictions and reproduction of these materials.
Copyright McDougal Littell Inc. All rights reserved.

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DLESE: Digital Library for Earth System EducationMSP2: Math and Science Pathways

Content contained within the resource

Visualization ES0903  Observe an animation of volcanism along a rift zone. Rift zones are divergent plate boundaries. Most of them occur along the seafloor as mid-ocean ridges. Where two plates are moving away from each other, molten rock rises to the surface, cools, and solidifies. Generally, each eruption of lava splits the rocks formed in the previous eruption, so the youngest rocks are always at the rift.   !   Click the image to see the animation. Jen Loomis, TERC