Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
Search NOVA Teachers
Back to Teachers Home
Mt. St. Helens: Back From the Dead
Learn the Science
EXPLORE THE MECHANICS OF A VOLCANO
From gentle, effusive eruptions that can be observed safely at close range to violent, life-threatening eruptions that occur with no warning, volcanoes vary greatly in their intensity. Help your students discover how volcanoes form and what causes them to erupt.
Mt. St. Helens: Back From the Dead (Video)
See what scientists are able to learn about the volcano from its dome building cycle. (Chapter 4, approx. 9 min.)


Anatomy of a Volcano (Slideshow)
Distinguish your magma from your tephra and your lava from your lahar.


Plate Tectonics: The Hawaiian Archipelago (Video)
Learn more about the volcanoes that formed the Hawaiian Islands. (4:38 min.)


Anatomy of Nyiragongo (Interactive)
Find out what features make this unquiet volcano tick.


Mystery of the Megavolcano (Lesson)
Use volcanic ash data to determine the source of a possible supervolcanic eruption that occurred in the western United States.

Curriculum Connections
Volcanoes, volcanic ash, ashfall, magma, supervolcanic eruptions, data collection, hypothesis, caldera, pyroclastic flow, supervolcano, tephra

Standards
Grades 5-8
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard D: Earth and Space Science: Structure of the earth system
Standard F: Science in Personal and Social Perspectives: Natural hazards

Grades 9-12
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard D: Earth and Space Science: The origin and evolution of the Earth system
Standard F: Science in Personal and Social Perspectives: Natural and human-induced hazards



EXTENSION ACTIVITY
Seismic Signals (Interactive/Lesson)
See the four primary types of earthquakes produced by volcanoes and the signals each produces on a seismometer.

Curriculum Connections
Internal Earth processes, earthquakes, volcanoes, seismography, seismometer, tectonic plates, seismic vibrations, magma, data collection

Standards
Grades 5-8
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard D: Earth and Space Science: Origin and evolution of the earth system

Grades 9-12
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard D: Earth and Space Science: Structure of the earth system



   

Support provided by