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Test 1 Volcanoes (activities 1,2,3)

21 Questions  I  By Ms.garcia
This TEST is based on the lessons of Ch. 1, Activity 1,2,3. Once completed, answer the short answer on the board. Good luck!

  
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Question Excerpt

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1.  The Ring of Fire refers to the volcanoes that are
A.
B.
C.
2.  The Ring of Fire is created by tectonic plates pushing against each other, specifically when a plate carrying ocean (called oceanic plate) is pushing against a plate carrying land (called continental plate). The ocean will always lose because it is heavier. What happens to the water of the ocean? 
A.
B.
C.
3.  The Ring of Fire is created because plates push against each other. What type of plate interaction is that called?
A.
B.
C.
4.  Other volcanoes can form because the plates are pulling away from each other. This happens at divergent plate boundaries. When this process happens on land, the volcano forms in the  
A.
B.
5.  A FIXED source of abundant rising magma that forms a volcanic center is called a
A.
B.
6.  Magma & lava are often confused. Although chemical composition differs, they essentially refer to the same things. The easy way to remember this is magma is found in the ___________  and lava is found on the ___________ of the Earth.
A.
B.
7.  Volcanoes occur because of the interactions of the inside and outside of the earth. When there is an opening between the tectonic plates (either caused by convergent or divergent plates or a hotspot), a volcano can form if there is magma being propelled outward. Where do you see lava?
A.
B.
C.
D.
8.  True or False: Island chains (or archipelagos) are mostly created by hotspots
A.
B.
9.  True or False: The Ring of Fire has the most volcanic activity in the world
A.
B.
10.  The Ring of Fire touches nearly all continents except for...
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B.
C.
D.
E.
11.  This picture shows a volcano that already erupted in Oregon.That type of volcano is called a
A.
B.
C.
D.
12.  This volcano shows a picture of a high volcano in Montana. This is called a_____. Here's the inside of it.
A.
B.
C.
D.
13.  Magma composition helps shape a volcano. What substance determines whether magma is chunky or flowy? This is a picture of it.
A.
B.
C.
14.  Fill in the blank: A shield volcano was formed from magma with ________ silica and _______ viscosity. 
A.
B.
C.
D.
15.  Viscosity means...
A.
B.
C.
16.  Fill in the blank: A composite volcano was formed from magma with ________ silica and _______ viscosity. 
A.
B.
C.
D.
17.  True or False: The two factors that can influence the viscosity of lava are temperature & silica-content
A.
B.
18.  Based on the homework, lava can be controlled by a) long term spraying of water  b) creating another pathway c) all of the above d) none of the above
A.
B.
C.
D.
19.  True or False: Pyroclastic flows are when there is a lot of hot lava, gas, & rocks spewing from the volcano at very fast speeds. (Hint: This happened at Mt. St. Helens)
A.
B.
20.  True or False: Lahar flow is the flow of volcanic sediments & mud down the volcano and nearby  valleys. It can carry large objects.
A.
B.
21.  Identify the correct term: When the surface of the lava cools and hardens but the lava underneath still readily flows, this is called a…
A.
B.
C.
D.
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