WorksheetsUnit 1.2 Review
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
How are trenches formed?
a)
two oceanic plates converging
b)
two oceanic plates diverging
c)
two continental plates diverging
d)
two continental plates converging
2.
Which geological feature is created when oceanic plate is forced under an continental plate?
a)
divergent boundary
b)
subduction zone
c)
mid-ocean ridge
d)
rift valley
3.
Tectonic motion causes tension between plates causing....
a)
subsidence
b)
earthquake
c)
volcanic eruption
d)
meteoroid impact
4.
How did seismometers show evidence for the theory of plate tectonics in the 1960's?
a)
by allowing scientists to prevent future volcanoes near tectonic plate boundarie
b)
by providing evidence the continents have moved extensively over time
c)
by providing evidence of interactions between moving tectonic plates
d)
by allowing scientists to predict where future earthquakes would occur
5.
Which of these is the most recent evidence of plate tectonics?
a)
volcanic activity and seafloor spreading at the mid-ocean ridges
b)
similar fossils found on continents that are now separated by oceans
c)
the observation that the continents of South America and Africa fit together like in a puzzle
d)
similar rock formations found on different continents that are now separated by oceans
6.
What occurs at a place on Earth where two plates of crust are moving away from each other?
a)
An eroded mountain will rise
b)
Magma will form new crust
c)
A freshwater lake will develop
d)
Rivers will form canyon
7.
How is a rift valley formed?
a)
Two tectonic plates separated from each other
b)
Two tectonic plates collided with each other
c)
One tectonic plate slid under another
d)
One tectonic plate slid past another
8.
Why is Earth tectonically active?
a)
Earth’s solid surface layer rotates more rapidly than the layers beneath it.
b)
Areas of Earth’s solid surface layer are under great pressure from ocean water.
c)
Earth’s solid surface layer sits on a moving, semi-liquid layer.
d)
Areas of Earth’s solid surface layer are thicker and so heavier than other areas.
9.
What process is represented by this diagram?
a)
rotation
b)
conduction
c)
radiation
d)
convection
10.
Which area would experience the fewest earhquakes?
a)
1
b)
2
c)
3
d)
4
11.
How are non-volcanic mountains formed?
a)
oceanic plates colliding with oceanic plates
b)
oceanic plates separating from oceanic plates
c)
continental plates colliding with continental plates
d)
continental plates separating from continental plates
12.
Lava from volcanoes comes from this layer of the Earth......
a)
asthenosphere
b)
inner core
c)
outer core
d)
lithosphere
13.
What type of oceanic crust movement results in the formation of new crust?
a)
one oceanic plate sliding past another
b)
one oceanic plate slipping beneath another
c)
two oceanic plates colliding against each othe
d)
two oceanic plates pulling away from each othe
14.
Why are there severe earthquakes along the San Andreas Fault but no volcanoes?
a)
The crust is thin and weak at the location of this fault.
b)
The material along this fault is smooth and fine grained.
c)
The material in the mantle solidified due to cooling under this fault.
d)
The crustal plates slide along each other without subducting at this fault.
15.
When a volcano erupts and releases a towering plume of toxic ash and gas into the atmosphere, what would scientists need to warn officials of a need for evacuation of people living far away?
a)
computer models of the movement of the atmosphere
b)
an accurate measurement of the height of the volcano
c)
a careful count of the number of people living near the volcano
d)
an estimate of the number of gas masks available for emergency personnel
16.
What is the result when two tectonics plates slip past one another?
a)
floods
b)
earthquakes
c)
island building
d)
seafloor spreading
17.
Most severe earthquakes occur
a)
In mountains
b)
along major rivers
c)
at plate boundaries
d)
in the middle of plates
18.
The point along a fault where an earthquake begins is called the:
a)
focus
b)
epicenter
c)
fracture
d)
gap
100 %
