WorksheetsSeafloor Spreading & Plate Tectonics Review
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
What type of plate boundary is this?
a)
Plate
b)
Divergent
c)
Convergent
d)
Transform
2.
What type of event will occur at this boundary?
a)
Earthquake
b)
Volcano Eruption
c)
Tornado
d)
Mountain Building
3.
Which of the following causes Earth's tectonic plates to move?
a)
Energy from the Sun
b)
Magnetic Pole Reversal
c)
Convection currents in the mantle
d)
Faults in Mountain Ranges
4.
The type of plate boundary where two plates come together is a .....
a)
Convergent Boundary
b)
Divergent Boundary
c)
Transform Boundary
d)
Plate Boundary
5.
A divergent boundary occurs when plates ....
a)
Pull apart
b)
Come together
c)
Slide past each other
d)
subducting
6.
What type of plate boundary is this?
a)
Transform
b)
Convergent
c)
Divergent
d)
Plate
7.
Where would the oldest rock be found?
a)
L
b)
M
c)
N
d)
O
8.
How is it possible for new crust to be formed without increasing the surface area of the Earth?
a)
Crust is destroyed at the same time it is created
b)
New crust is underwater where it sinks
c)
New crust breaks more easily than old crust
9.
Mountains are created when....
a)
Two continental plates collide
b)
Two oceanic plates pull apart
c)
An Oceanic plate subducts under a Continental Plate
d)
Two continental plates pull apart
10.
What is this image...
a)
Revolving boundary
b)
San Andreas (Transform)
c)
Convergent
11.
The area where two tectonic plates meet.
a)
mantle
b)
focus
c)
plate boundary
d)
convection
12.
Most volcanoes and earthquakes occur...
a)
along the coast
b)
along tectonic plate boundaries
c)
in the Arctic
d)
in the ocean
13.
This landform can occur at a divergent plate boundary.
a)
ocean trench
b)
mid-ocean ridge
c)
tall mountains
d)
transform fault
14.
Which of these events can ONLY happen on a DIVERGENT BOUNDARY?
a)
Rift Valley
b)
Mountain
c)
A peninsula
d)
An Insanely complex, long answer that you will click out of instinct.
15.
The Himalayas in Asia are an example of what type of plate boundary?
a)
divergent
b)
continent-to-continent convergent
c)
ocean-to-continent convergent
d)
transform
16.
The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by this boundary
a)
Divergent
b)
Convergent
c)
Reform
d)
Transform
17.
The average density of one of the continental crusts is 2.8 g/cm3 and the average density of one of the oceanic crusts is 3.2 g/cm3. If these two plates came together, what could be expected to happen?
a)
The two plates would push apart and form a rift zone.
b)
The oceanic plate would rise up over the continental plate.
c)
The oceanic plate would be pushed under the continental plate.
d)
The two plates would meet head on and rise up to form mountains.
18.
Which of the following objects best represents the movement that occurs during sea-floor spreading?
a)
Elevator
b)
Conveyor belt
c)
Rollercoaster
d)
Hot air balloon
19.
What process is occurring at Z?
a)
Convection currents
b)
Subduction
c)
Two plates moving apart
d)
New ocean floor forming
20.
Why does the ocean floor sink beneath the continent at Z?
a)
The ocean floor is less dense than the continent.
b)
The ocean floor is more dense than the continent.
c)
The ocean floor is moving faster than the continent.
d)
The ocean floor is moving slower than the continent.
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