Names_______________________

Mount Saint Helens worksheet - Volcano unit

Use the links from the first days activities to find the answers. Questions where taken from each link, but you may find the answers are duplicated from site to site and may not need to use each link. One level link is all that is necessary.

1. How many homes could be built with the lumber that was destroyed? ___ ___ ___

2. What was the change in elevation after the eruption? ___ ___ ___

3. What was the width and depth of the crater after eruption? ___ ___ ___

4. What was the exact date and time of the eruption? ___ ___ ___

5. How high was the tsunami on Spirit Lake caused by the eruption? ___ ___ ___

6. What is a lahar? ___ ___ ___

7. How many homes were destroyed by lahars? ___ ___ ___

8. What was the magnitude of the earthquake that shook Mt. St. Helens? ___ ___ ___

9. How many people were killed or missing because of the eruption? ___ ___ ___

10. How many acres are in the Mount St. Helens Volcanic Monument? ___ ___ ___

11. From which volcanic mountain peaks group does Mt. St. Helens ___ ___ ___

belong?

12. What is the name of the valley east of Mount St. Helens? ___ ___ ___

13. How many miles of river channels were affected by the blast? ___ ___ ___

14. What happened to Reid Blackburn’s car? ___ ___ ___

15. How far was Reid Blackburn’s car from Mount St. Helens? ___ ___ ___