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WorksheetsVolcano Checkpoint
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
In which location would you most likely find volcanoes?
a)
along transform boundaries
b)
far from plate boundaries
c)
along mid-ocean ridges and where a plate is subducted
2.
What provides the force that causes magma to erupt to the surface?
a)
the silica in the magma
b)
dissolved gases trapped in the magma
c)
gravity in the lithosphere
d)
the density in the magma
3.
Before lava reaches the surface, the molten material is called
a)
rock
b)
volcanic ash
c)
liquid fire
d)
magma
4.
If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano?
a)
it is dormant
b)
it will probably erupt
c)
it is extinct
d)
it is a good source of geothermal energy
5.
Why does magma tend to rise to the surface?
a)
It has large amounts of silica.
b)
It contains very little silica.
c)
It is denser than the surrounding material.
d)
It is less dense than the surrounding material.
6.
The volcanoes on the Hawaiian Islands form due to which of the following?
a)
Divergent Boundary
b)
Hot Spot
c)
Subduction Boundary
d)
Transform Boundary
7.
What is the principal ingredient to all types of magma?
a)
Iron
b)
Magnesium
c)
Silica
d)
Water
8.
What type of lava cools slowly and forms rock with smooth, ropelike features?
a)
Aa
b)
Magma
c)
Pahoehoe
d)
Pillow Lava
9.
What type of lava cools quickly and forms rock with jagged edges?
a)
Aa
b)
Magma
c)
Pahoehoe
d)
Pillow Lava
10.
Where are most volcanoes found?
a)
Southern Hemisphere
b)
Ring of Fire
c)
Mid-Atlantic Ridge
d)
Hot Spots
11.
What kind of magma produces violent volcanic eruptions?
a)
Magma low in silica
b)
Magma that is fluid, and runny
c)
Magma that is high in gas content
d)
Magma rich in iron
12.
The hot ash, gas and rock that races down the side of a volcano is known as ___
a)
Tephra
b)
Pyroclasitic flow
c)
Lava Dome
d)
Lava Plateau
13.
If a volcano's magma is high in silicia, the volcano will probably
a)
erupt quietly
b)
remain dormant
c)
erupt explosively
d)
produce dark color lava
14.
The main hazard from QUIET volcanic eruptions is
a)
volcanic gases
b)
lava flows
c)
geysers
d)
pyroclastic flows
15.
Volcanoes that form along a mid-ocean ridge occur at a
a)
transform boundaries
b)
divergent boundaries
c)
convergent boundaries
d)
hot spots
16.
A pyroclastic flow typically occurs during a(n) _________ eruption.
a)
quiet
b)
dormant
c)
explosive
d)
extinct
17.
14. What is the force behind why plates move?
a)
earthquakes cause plates to move
b)
volcanic eruptions cause plates to move
c)
convection currents in the mantle cause plates to move
d)
the force of air from wind causes the plates to move
18.
Name the type of boundary found at location A
a)
divergent
b)
convergent
c)
transform
d)
strike-slip
19.
Name the type of boundary found at location B
a)
divergent
b)
convergent
c)
transform
d)
strike slip
20.
How do volcanoes form at
location A?
location A?
a)
A is the point where a mid ocean ridge would form. Volcanoes would form here because tension is pulling the plates part allowing the magma to rise to the surface.
b)
Volcanoes form at A because the two plates collide into each other creating a subduction zone.
c)
Volcanoes form at A due to a hot spot being located there.
21.
How do volcanoes form at B?
a)
Volcano B is the point where a mid ocean ridge would form. Volcanoes would form here because tension is pulling the plates part allowing the magma to rise to the surface.
b)
Volcanoes form at B because the two plates collide into each other creating a subduction zone.
c)
Volcanoes form at B due to a hot spot being located there.
22.
22. Where in the United States do volcanoes like B form?
a)
on the east coast
b)
near Ohio and Indiana
c)
on the west coast
d)
no where; the USA doesn't have volcanoes
23.
The resistance a liquid has to flowing is known as
a)
flowability
b)
viscosity
c)
density
24.
Which number represents magma in the diagram?
a)
10
b)
9
c)
7
d)
2
25.
Using the diagram, which island would be the oldest?
a)
Hawaii
b)
Maui
c)
Oahu
d)
Kauai
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