Name_____________________________________________________Date_______________________________Period____________
Virtual Volcano Activity
Use the class set of pictures and diagrams to help you answer the questions below.
Global Perspective
Use figure 1 called “TECTONIC PLATES”
1. What is the earth’s crust divided into????
2. Where are active volcanoes found??
Use figure 2 “RING OF FIRE”
3. What is the ring of fire?
4. Explain where the ring of fire can be found:
Use figure 3 “LAYERS WITHIN”
5. What are the layers of the earth? Which one makes up the “plates”?
6. Are tectonic plates stationary or do they move??
7. How do volcanoes form??
8. (Complete the sentence) Volcanoes form when magma _____________________________________,
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Volcano Types
Use figure 4 “STRATOVOLCANO”
9. Use your notes and define viscosity:
10. What are stratovolcanoes (composite) built of?
11. Are stratovolcanoes (composite) flat or steep?
12. Do stratovolcanoes (composite) erupt violently or quietly?
13. What are two well known stratovolcanoes (composite)?
Use figure 5 “CINDER CONE”
14. Are cinder cones volcanoes small or large in size?
15. Are cinder cone volcanoes steep or flat volcanoes?
16. What are cinder cone volcanoes made of????
17. What are two examples of cinder cone volcanoes?
Use figure 6 “SHIELD”
18. Are shield volcanoes small or large in size?
usually at
19. Are shield volcanoes steep or flat volcanoes?
20. What are cinder cone volcanoes made of????
21. Is the lava that makes up shield volcanoes thick or runny (fluid)?
22. What is one example of a shield volcanoes?
23. Considering what you learned; rank the 3 types of volcanoes from smallest to largest:
24. Considering what you learned; rank the 3 types of volcanoes from flattest to steepest:
Gas and Viscosity Settings
Use figure 7 “GAS INFO”
26. What gases are dissolved in magma or volcanoes?
27. Do you think gases make a volcanic eruption explosive and violent or quiet and non-explosive?
Use figure 8 “VISCOSITY INFO”
28. What is the magma’s viscosity or thickness and indication of????
29. What do thick magma’s tend to have more of????
30. Runny, fluid lavas tend to have low levels of what???
32. Use figure 9: Shield Eruption. What type of eruption took place??? Was it explosive or non-explosive? Describe the shape of the volcano; is
it gentle sloping or steep??? Is it Wide or Narrow; tall or flat?
34. Use figure 10: Strato Cone Eruption. What type of eruption took place??? Was it explosive or non-explosive? Describe the shape of the
volcano; is it gentle sloping or steep??? Is it Wide or Narrow; tall or flat ?
Mini Quiz:
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35.Lava or magma with low levels of silica and gas content will travel long distances and create flat
a.
Strato/ Composite volcano
c.
Cinder Cone Volcano
b.
Shield Volcano
d.
Pyrocone Volcano
36.As the amount of silica increases, magma tends to
a.
Increase in viscosity
c.
decrease viscosity
b.
More fluid
d.
remain unchanged
37. Most volcanoes occur ____.
a.
along convergent boundaries
c.
along divergent boundaries
b.
At hot spots
d.
All of the above
http://www.guardian.co.uk/flash/volcanoes.swf
http://www.bbc.co.uk/worldservice/flash/swf/volcanoes/volcanoes_en.swf
Compare and Contrast
You will write a Diamante Poem to compare and contrast a shield eruption to a strato
cone (composite) eruption. Fill in all the blanks below. Use diagrams 9-10 and any notes
you have to help you.
Shield Volcano
(noun related to shield volcano)
(adjectives describing shield volcanoes)
(-ing verbs describing shield volcanoes)
(words describing shield volcanoes)
(words describing strato cone volcanoes)
(-ing verbs describing strato cone volcanoes)
(adjectives describing strato cone volcanoes)
(noun related to strato cone volcano)
Strato Cone Volcano