Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup
Search
Follow The Annenberg Learner on LinkedIn Follow The Annenberg Learner on Facebook Follow Annenberg Learner on Twitter
MENU

title image

Science

Error - unable to load content - Flash

Volcanoes—Sources and Types of Lava

Run Time: 00:07:00

Volcanologist Dave Sherrod of the Hawaii Volcano Observatory, USGS, and Michael Manga, Associate Professor of Hydrogeology at the University of California, Berkeley, describe how mantle rock melts into magma and how the more buoyant, liquid magma floats toward the Earth's surface. They also compare the amount of dissolved gases in Hawaiian volcanoes versus Mount St. Helens. Different compositions of magma create shield volcanoes and stratovolcanoes. Gas-enriched, higher-silica eruptions create classic stratovolcanoes, while the less-gaseous, low-silica magma in the Hawaiian volcanoes erupts to create shield volcanoes. Featured Scientists: Chuck Blay, Ph.D., Keith Klepeis, Ph.D., Andy Kurtz, Ph.D., Michael Manga, Ph.D., and David Sherrod, Ph.D.

Standards

NSES Standard

Grades 5-8 Standard D. Some changes in the solid earth can be described as the "rock cycle".


© Annenberg Foundation 2014. All rights reserved. Legal Policy