Name _______________________________________________________, Per ______________
Volcano Webquest Data sheet
Use complete sentences to answer the following questions from the links on the webquest. Most will require
multiple sentences to answer.
Part 1 – Geography4kids:
1. What are the two main types of volcanoes?
2. What is a shield volcano?
3. What is a composite volcano?
4. What kind of volcano is Mt. St. Helens?
5. What is a the main passageway of a volcano called?
6. Explain what a crater is.
7. What is a caldera?
8. How does magma move to the surface?
9. What are three types of Lava?
10. Explain Silicic lava.
11. What is mafic lava?
12. What is intermediate lava?
Part 2 – Volcano World - Positives:
1. List 5 benefits that volcanoes create
2. List 5 negatives that volcanoes create
Christensen – Volcano webquest data sheet – rev. 1.13.14
Part 3 – USGS- Mt. St. Helens - 2:
1. When did Mt St. Helens in Washington erupt?
2. What triggered Mt St. Helens eruption?
3. Why was this eruption not a surprise to scientists?
4. How was the mountain transformed (changed) by the eruption?
Part 4 – USGS Mt St. Helens – 3:
1. What was the main effect and damage create by Mt St Helens eruption?
2. What negative effects are caused by the volcanic ash?
3. How was the climate impacted?
Part 5 – USGA –Mt St Helens - 5:
1. What impact did the eruption have on plants?
2. What impact did the eruption have on animals?
Part 6 – USGS – Mt St Helens - 6
1. List below the volcanoes that have erupted in the Cascade Mountains in the last 4000 years.
Include it’s name, the state, how many times it has erupted, and whether or not it is presently
active. (use info from fig 2)
Volcano Name
State
# of times erupted
Present?
Christensen – Volcano webquest data sheet – rev. 1.13.14
Christensen – Volcano webquest data sheet – rev. 1.13.14