TITLE
Essential Science for Teachers: Earth and Space Science: Session 4. The Engine That Drives the Earth

CLIP DESCRIPTION
Students and scientists explore the question: What are volcanoes and what causes them to erupt?

AAAS BENCHMARK
4C (9-12) #5 . Earthquakes often occur along the boundaries between colliding plates, and molten rock from below creates pressure that is released by volcanic eruptions, helping to build up mountains. Under the ocean basins, molten rock may well up between separating plates to create new ocean floor. Volcanic activity along the ocean floor may form undersea mountains, which can thrust above the ocean's surface to become islands.

PROGRAM DESCRIPTION
What drives the movement of tectonic plates? In this session, participants learn how plates interact at plate margins, how volcanoes work, and the story of Hawaii's formation.

RIGHTS
Annenberg/CPB. All Rights Reserved.

PUBLISHER
Annenberg/CPB