Teacher resources and professional development across the curriculum
Teacher professional development and classroom resources across the curriculum
Partially melted rocks below the surface can be solid but flow like a liquid: a "fluid solid." Geologist Keith Klepeis of the University of Vermont discusses how this type of material can be simulated by using PlayDoh®. Animations demonstrate how rigid tectonic plates can move in relation to each other. The lithosphere (the solid layer at the surface) glides across a weaker, fluid solid layer (the asthenosphere) in the upper part of the mantle. Featured Scientists: Keith Klepeis, Ph.D. and David Sherrod, Ph.D.
Grades 5-8 Standard A. Science as Inquiry:Develop descriptions, explanations, predictions, and models using evidence.
Standard D. Crustal plates constantly move in response to the movements of the mantle.