Name: ______________________________
Date: ____________ Period: ___
Webquest: Volcanoes
I. Classifying Volcanoes
Use online resources to find the location and classification of the following volcanoes:
VOLCANO
LOCATION
COMPOSITE
SHIELD
CINDER CONE
Mt. Pinatubo
Mount Hood
Kilauea
Paricutin
Mount Cotopaxi
Mount Saint Helens
Mount Rainier
Mauna Loa
Mount Fuji
Mount Shasta
Mt. Etna
II. The Dynamic Earth Interactive Site
Go to : http://www.mnh.si.edu/earth/main_frames.html
 Click on Multimedia Version.
 Click on Plate Tectonics and Volcanoes.
 Click on Volcanoes and Hot Spots.
 Click on “Volcano Profiles” (in yellow near the top of the page)
1. What kind of lavas build steep cones? __________________________
2. Where are cinder cones found? ________________________________________________________
_____________________________________________________________________________________
3. What is a lava dome? _________________________________________________________________
4. Where does the name “stratovolcano” come from? ________________________________________
_____________________________________________________________________________________
5. Where do shield volcanoes typically form? ________________________________________________
6. How is a caldera formed? ______________________________________________________________
______________________________________________________________________________________
7. Why do scientists wonder if flood basalt outpourings changed the history of life on Earth? _________
_____________________________________________________________________________________
 Click on “Inside an Active Volcano”
8. How do volcanoes grow? ______________________________________________________________
9. What is tephra? _____________________________________________________________________
10. What is a conduit? __________________________________________________________________
11. What do you call the rocks that form when flowing lava solidifies? __________________
 Click on “Build a Volcano”
Record the type of volcano resulting from the given combinations. Click “Build It” after each to see a
simulation.
Volume + Viscosity + Volatiles = Volcano Type
12. Low
+ Low
+ Low
= _____________________________
13. Low
+ Low
+ Med.
= _____________________________
14. Med.
+ Med.
+ Med.
= _____________________________
15. High
+ Med.
+ Med.
= _____________________________
16. High
+ Low
+ Med.
= _____________________________
 Click on “Above Hot Spots”
17. What do the Hawaiian Islands and Yellowstone have in common? _____________________________
______________________________________________________________________________________
18. (Hawaiian Islands) How many volcanoes have formed over this hot spot? _______________________
19. What is the name of the submarine volcano south of Hawaii? __________________
20. Where do most of Kilauea’s eruptions occur? _________________________
21. How do pahoehoe lava and aa lava differ? ________________________________________________
______________________________________________________________________________________
22. When will Loihi form an island and merge with Hawaii? ____________________________________
23. (Yellowstone National Park) How many eruptions has Yellowstone experienced? ____________
24. What present-day state was originally over the hot spot? ________________________
25. When was the Huckleberry Ridge Eruption? ______________ What was the volume? _____________
26. What do scientists monitor for warning signs of an eruption? _________________________________
______________________________________________________________________________________
 Click on “Tracking Volcanoes”
27. Around the perimeter of which plate are many volcanoes located? ________________________
28. What is the purpose of the Global Volcanism Program? ______________________________________
______________________________________________________________________________________
 Click on the red link to “Visit the Global Volcanism Program’s Website”.
( http://www.volcano.si.edu/reports/usgs/ )
 Click on “Weekly Report” in blue on the left side of the page.
Document 4 of the reported volcanic activities for the week:
1. Volcano: ____________________________
Location: _____________________________
Activity reported: ____________________________________________________________________
___________________________________________________________________________________
Volcano Type: __________________________________
2. Volcano: ____________________________
Location: _____________________________
Activity reported: ____________________________________________________________________
___________________________________________________________________________________
Volcano Type: __________________________________
3. Volcano: ____________________________
Location: _____________________________
Activity reported: ____________________________________________________________________
___________________________________________________________________________________
Volcano Type: __________________________________
4. Volcano: ____________________________
Location: _____________________________
Activity reported: ____________________________________________________________________
___________________________________________________________________________________
Volcano Type: __________________________________