Name: _______________________
Period: ________
Forces of Nature Webquest: Volcanoes
Log on to the “Forces of Nature” website either through my website or by going to:
http://environment.nationalgeographic.com/environment/natural-disasters/forces-of-nature.html
Click on the second image (a volcano) next to “choose a force” in the gray box under the title
“forces of nature.” Make sure you start in the “lab” tab in the yellow area and read through
each of the 6 pages to answer the following questions.
I. In the “Lab” tab:
1. About how many volcanoes are active today? What percent are in the Ring of Fire?
2. What are 4 benefits of volcanoes?
a.
b.
c.
d.
3. Where do most volcanoes occur?
4. Click on the 5 different boxes containing volcanoes in the diagram. Describe the 5
different ways in which volcanoes can form.
a.
b.
c.
d.
e.
5. Describe the six different types of volcanoes. Include a description of its shape and
composition (what it is made of).
Type of volcano
Shape
Composition
6. What are two common traits that characterize volcanoes?
a.
b.
7. Describe how the amounts of dissolved gases determine if the volcano will have
explosive or non-explosive eruptions.
8. What is viscosity?
9. What substance determines magma’s viscosity?
10. Describe how the viscosity of magma effects volcanic eruptions.
11. Make your own volcano by first choosing the amount of dissolved gases and silica
content (use the same settings for all eruptions) then simulate eruptions for all four
volcano types. Describe similarities and differences (make at least 4 comparisons).
II. Choose the “Case Studies” tab and fill in the chart below.
Name
Location
Type
Interesting Fact