Geography and History of the World © 2010 Indiana Edition

Chapter 29: Physical Geography of Southeast Asia

Web Activity Lesson Plans

“Krakatau”

Introduction
In this chapter you read about the physical geography of Southeast Asia. One of the more distinctive features in this region are the number of volcanoes. The nation of Indonesia has over 300 volcanoes, some of the most active lying on the island of Java. Scientists today try to measure volcanic activity to prevent disastrous results.

Lesson Description
Students will research volcanic activity in Indonesia and study ways scientist are trying to prevent volcanoes from causing disastrous results by monitoring volcanic activity.

Student Web Activity Answers

  1. Scientist use the Volcanic Explosivity Index (VEI). Krakatau was a six on this scale, one of the largest in history
  2. volcanologists
  3. They measures volcanic gases and how much lava is moving underground.
  4. Volcanic eruptions cause large amounts of ash to be emitted into the atmosphere, lava flow, and possibly volcanic lighting. These cause widespread damage to an area's agriculture as well as naturally polluting water sources in the area. Further, human being are displaced even they are given enough warning to escape a large scale eruption.
  5. Student responses will vary but might include: is the volcano being monitored and how, when was the last eruption, how large was the last eruption on the VEI scale, is there an evacuation plan if the volcano erupts

Activity
Student responses will vary

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