Web Links Related to this Lab

Volcanic Hazards Program

Smithsonian Institution National Museum of National History Global Volcanism Project

Assignment 

Watch the Pre Lab Video. Read all sections of Lab 5. Answer the following questions:

Activity 5.1 The Nature of Volcanic Eruptions Questions 1-8

Activity 5.2 Shield Volcanoes Questions 1-6 *Answer to Question 1 - about 5°

Activity 5.3 Cinder Cones Questions 1-9 *Answers to Questions 1, 3, and 8 - 1. about 30°, 3. about 800 feet, 8. the lava flow is about 5,500 feet long

Activity 5.4 Composite Volcanoes Questions 1-8 *Answers to Questions 4 and 5 - 4. about 30°, 5. about 10°

*Note the answers to the measurement questions have been provided for you to help you complete this lab. This is because with some people using digital versions of the lab manual, some people having the book, and others making photo copies means that you may have different measurements. If this class were in person, I would have us do all of the measurements together in class just to make sure everyone is on the right track. Hopefully if you have the data, you will be able to answer the questions correctly. If you have any difficulty with this lab, please let me know.

Learning Objectives

Each statement represents an important learning objective that relates to one or more sections of this lab. After you complete this exercise you should be able to:

• Explain why some volcanic eruptions are explosive and others are effusive.

• Summarize the characteristics of shield volcanoes and provide one example of this type of volcano.

• Describe the formation, size, and composition of cinder cones.

• List the characteristics of composite volcanoes and briefly describe how they form.

• Describe two major geologic hazards associated with volcanoes.