Teacher resources and professional development across the curriculum
Teacher professional development and classroom resources across the curriculum
Learner Express: Modules for Teaching and Learning
As two oceanic plates pull away from one another, magma moves to the surface, creating a continuous mountain range of deep-sea volcanoes known as a mid-ocean ridge. Volcanologist Dave Sherrod of the Hawaii Volcano Observatory, USGS, and Geoscientist Chuck Blay of Teok Investigations, describe how new oceanic crust is formed at these divergent plate margins. Across the ocean, the oceanic plate collides against a continental plate and is driven down into the mantle, forming a subduction zone. Run Time: 00:02:54
Grades 5-8 Standard D. Crustal plates constantly move in response to the movements of the mantle.