WorksheetsUnit 3: Inside the Earth
Total questions: 23
Worksheet time: 23mins
Name
Class
Date
1.
The diagram below shows the earthquake risks in a particular region. To minimize the damage to buildings during an earthquake, where should new buildings be built?
a)
region A
b)
region B
c)
region C
d)
region D
2.
Areas on Earth's surface that lie above the borders of tectonic plates are characterized by
a)
frequent earthquake activity.
b)
lengthy formations of sea arches.
c)
stable temperate climate conditions.
d)
a lack of plant and animal life.
3.
A deep well or mine shaft goes through which layer or layers of Earth?
a)
crust only
b)
mantle only
c)
crust and mantle
d)
mantle and core
4.
A boundary where two tectonic plates come together, or collide is called a
a)
divergent boundary
b)
convergent boundary
c)
transform boundary
d)
transfer boundary
5.
Earth's core is mainly composed of
a)
iron and aluminum.
b)
silicon and hydrogen.
c)
iron and nickel.
d)
silicon and oxygen.
6.
Which accurately describes the relationship between earthquakes and volcanoes?
a)
Earthquakes usually cause volcanoes to erupt.
b)
Volcanic eruptions usually cause severe earthquakes.
c)
Earthquakes and volcanoes often are located where tectonic plates meet.
d)
Earthquakes and volcanoes are not related in any way.
7.
What is the primary cause of volcanoes and earthquakes?
a)
crustal plate movement
b)
Earth's gravitational force
c)
higher than usual tides
d)
solar magnetic storms
8.
The San Andreas Fault in Mexico and California is watched carefully for signs of an expected earthquake. Why do scientists think an earthquake might happen there?
a)
The chances of a major earthquake in California have increased greatly because there has been so much construction there.
b)
Everyplace on Earth's crust has a probability of earthquakes and the San Andreas Fault has never had one.
c)
The San Andreas Fault is a known major fault where pressure for lateral movement had been building for many years.
d)
The San Andreas Fault line is the line that divided the part of California that is sinking into the Pacific Ocean.
9.
Which feature would be very unusual if it were found somewhere on Earth's surface?
a)
a volcano under the sea
b)
a large, non volcanic mountain on a flat plain
c)
a mountain range near the seacoast
d)
a deep underwater gorge near a continental shelf
10.
Which of these statements about Earth's crust is true?
a)
It is a layer of solid rock that remains the same throughout time.
b)
It includes the continents, but not the ocean floor.
c)
It is a changing, moving surface with the same thickness everywhere.
d)
It is a system of large masses called plates that slowly move together or apart.
11.
Compared to rocks in Earth's crust, rocks in the mantle are more
a)
dense.
b)
mineral-rich.
c)
granular.
d)
porous.
12.
How do active volcanoes located on islands create more land area on these islands?
a)
Lava from volcanoes cools and hardens, forming more land.
b)
Lave from volcanoes melts through old rocks, exposing more land,.
c)
Heat from volcanoes causes the ocean to evaporate, exposing more land.
d)
Heat from volcanoes causes minerals in seawater to condense, forming more land.
13.
What is the MAIN reason that the continents look very different than they did 100 million years ago?
a)
Ocean currents have constantly reshaped the continents.
b)
Volcanoes have made and destroyed many of the continents.
c)
The continents have drifted apart from one another on lithospheric plates.
d)
Wave and wind have caused parts of continents to erode into the ocean.
14.
Magma pushes up from the mantle in the middle of the Atlantic Ocean. As a result, the Atlantic Ocean is growing by several centimeters each year. How else has this magma affected the Atlantic ocean?
a)
It has produced a flat, smooth ocean floor as the continents separate.
b)
It has created a long, large mountain range below the ocean's surface.
c)
It has produced volcanoes along the edges of the separated continents.
d)
It has made the Atlantic waters much warmer than the Pacific Ocean waters.
15.
What landform is created when two continental plates collide?
a)
mountain range
b)
ocean basin
c)
volcano
d)
canyon
16.
Many places on Earth are shaken by earthquakes. The Pacific Coast of the United States is one such area. What causes these earthquakes?
a)
erosion
b)
gravity
c)
solar heating
d)
plate movement
17.
What is found in areas on Earth's surface that are located directly above the borders of lithosphere plates?
a)
huge deposits of magma
b)
lack of plant or animal life
c)
frequent earthquake activity
d)
stabel and unchanging landforms
18.
Most earthquakes and volcanoes occur in areas of the Pacific Ocean called "The Ring of Fire." What is the main reason for this?
a)
Large numbers of people live in this area.
b)
That area os the Earth is hotter than any other area.
c)
Lithosphere plate boundaries are found in that area.
d)
The weight of the ocean water forces magma to the surface.
19.
Scientists believe the Earth's inner core to be solid. This is probably due to extremes in:
a)
depth.
b)
density.
c)
pressure.
d)
temperature.
20.
The average density of one of the continental crusts is 2.8g/cm3 and the average density of one of the oceanic crusts is 3.2g/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 pate would be pushed under the continental plate.
d)
The two plates would meet head on and rise up to form mountains.
21.
If we compare the temperature and pressure of the EArth's mantle to the core, what differences can we expect as we move downward into the Earth?
a)
Both temperature and pressure increase.
b)
Both the temperature and pressure decrease.
c)
The temperature decreases and the pressure increases.
d)
The temperature increases and the pressure decreases.
22.
IN December, 2004, an earthquake registering 9.0 on the Richter scale was recorded off the far off the coast of Sumatra. What is a common secondary effect of this type of earthquake?
a)
a tsunami
b)
a tornado
c)
global warming
d)
volcanic activity
23.
The Earth's surface can change either quickly or slowly. Which of these can happen when rocks and soil in the Earth move suddenly?
a)
landslides
b)
tornadoes
c)
hurricanes
d)
blizzards
100 %
