Footage of volcanic activity in Iceland and Hawaii, as well as earthquake events in California, illustrate how these dynamic forces affect our world. Through descriptions of actual volcanic and earthquake occurrences, students will discover how these dynamic forces affect our world. The video discusses the nature and causes of earthquakes and volcanoes. Other terminology includes: molten rock, magma, lava, cinder cone, shield volcano, composite volcano, caldera, Ring of Fire, seismic waves, seismograph, and Richter Scale.

Originally released by Visual Learning, 2003. Streaming video file encoded with permission for digital streaming by Infobase on April 18, 2015.

Earthquakes (2:49); --Faults and Earthquakes (1:16); -- Origins of Earthquakes (1:36); -- Seismology (1:20); -- Measuring Earthquakes (1:07); -- Volcanoes (1:35); -- Magma and Lava (1:11); -- Volcanic Eruptions (1:53); -- Types of Volcanoes (2:30); -- Formation of Volcanoes (1:14); -- Volcanoes and Earthquakes: Summing Up (0:57); -- Volcanoes and Earthquakes: Video Quiz (2:55); -- Credits: Volcanoes and Earthquakes (0:58); -- Volcanoes (2:30); -- Tsunami description (1:34); -- Volcano types (1:49); -- Ragland - Earthquakes (1:04); -- Earthquakes (0:35); -- Farhan-Volcanoes (0:34); -- Vandiver - Earthquakes (0:19); .