WorksheetsPlate Tectonics and the Seafloor Practice
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which statement is NOT true about Iceland?
a)
The Mid-Ocean Ridge runs through it
b)
It is getting bigger every year
c)
It is located in the Pacific Ocean
d)
It is located at a divergent plate boundary
e)
It has more than 10 active volcanoes
2.
The Peru-Chile Trench runs along the coast of South America, where an oceanic plate is being subducted under a continental plate. Which of the following would you expect to find parallel to the trench?
a)
volcanoes
b)
another trench
c)
a mid-ocean ridge
d)
a hot spot
3.
True or False: The red dots on this map are showing the locations of deep sea trenches.
a)
True
b)
False
4.
Which of the following best describes the island of Maui?
a)
It will continue to get larger from lava flow for at least another 100 million years
b)
It will eventually erode and sink back into the ocean and not much of it will remain in another 20 million years
c)
It will begin to get larger in about 20 million years when it is back over the hot spot
5.
Which of the following is NOT true of the Mariana Trench?
a)
it's in the Atlantic Ocean
b)
It is around 6 miles deep
c)
The deepest point is called the Challenger Deep
d)
Only specialized submarine can reach to the bottom
e)
It is a result of plate tectonics
6.
Which is the best explanation for what is happening at Location B?
a)
One plate is being subducted under another
b)
two plates are colliding and folding upwards to create mountains
c)
two plates are separating to form a trench
7.
Which of the following is NOT correct?
a)
Rock A and rock D are not the same age
b)
Rock B and rock C are the same age
c)
Rock B and rock C would have the same magnetic history
d)
Rock A is older than rock D
8.
The deepest trench is the
a)
Mariana Trench
b)
Puerto Rico Trench
c)
Peru-Chile Trench
d)
Java Trench
9.
Alfred Wegener proposed the Theory of
a)
Plate Tectonic
b)
Continental Drift
c)
Hot Spots
d)
Earth's Magnetic Field
10.
What does the magnetic information stored in rocks tell us about the seafloor?
a)
the depth at the time the rocks formed
b)
the age of the rocks
c)
the direction of the magnetic north pole at the time the rocks formed
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