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WorksheetsUnit 4: Oceanography
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
What symbolizes a trench?
a)
3
b)
5
c)
6
d)
7
2.
What symbolizes the continental shelf?
a)
1
b)
2
c)
4
d)
7
3.
What symbolizes the abyssal plain?
a)
1
b)
3
c)
6
d)
7
4.
Which number identifies the continental shelf?
a)
1
b)
2
c)
3
d)
4
5.
Approximately which percentage of Earth's surface is covered in water?
a)
30%
b)
50%
c)
80%
d)
90%
6.
What can be concluded from the image?
a)
Most of the freshwater on Earth is found in oceans.
b)
Most of the water available on Earth is not drinkable.
c)
Most of the water available on Earth is drinkable.
d)
Most of the freshwater on Earth is found as groundwater.
7.
The relatively thin layer of water covering the lithosphere is the
a)
asthenosphere.
b)
hydrosphere.
c)
atmosphere.
d)
biosphere.
8.
Which city receives its freshwater supply directly from the Hetch Hetchy Aqueduct?
a)
Fresno
b)
Los Angeles
c)
Santa Barbara
d)
San Francisco
9.
A scientist took samples from 10 random sources of water on Earth. Assuming his samples have the same distribution as Earth's water, about how many of his samples should be salt water?
a)
1
b)
3
c)
6
d)
9
10.
Aquifers are sources of
a)
silica, which is used to make glass and paper products.
b)
oil, which is drilled from the aquifer and used to power homes.
c)
saltwater, which is pushed through turbines to make energy.
d)
freshwater, which is used for drinking, bathing, and watering crops.
11.
How much freshwater is used by the United States each year?
a)
1 billion gallons
b)
25 billion gallons
c)
1 trillion gallons
d)
25 trillion gallons
12.
Where is most of the Earth's freshwater located?
a)
in the ocean
b)
in icecaps and glaciers
c)
in rivers and streams
d)
in aquifers
13.
Which of these things will most likely increase the salinity of a region of the ocean?
a)
runoff from a large river
b)
increased precipitation
c)
the thawing of a large iceberg
d)
the evaporation of seawater
14.
What symbolizes a rift valley?
a)
2
b)
3
c)
4
d)
5
15.
Which of the following that are sources of salt in the oceans.
a)
volcanic activity in the oceans
b)
erosion of land areas by rivers and glaciers
c)
wave action along shores
d)
All of the above
16.
Which number identifies a mid-ocean ridge?
a)
2
b)
3
c)
4
d)
5
17.
Which of the following describes a seamount?
a)
ocean floor at the edge of a continental margin
b)
underwater mountain range
c)
sediment piled at the base of the continental slope
d)
underwater volcano that is more than 1 km high
18.
The hurricanes that hit the eastern coast of the United States are formed in which ocean?
a)
Arctic
b)
Atlantic
c)
Indian
d)
Pacific
19.
Which of the following causes most ocean currents on the water's surface?
a)
latitude
b)
evaporation
c)
prevailing winds
d)
salinity shifts
20.
Which letter on the diagram shows the region where coral reefs are most likely to be found?
a)
W
b)
X
c)
Y
d)
Z
21.
Ocean currents are produced by
a)
volcanoes on the bottom of the ocean floor.
b)
earthquakes on the bottom of the ocean floor.
c)
differences in the temperature of the water at different depths.
d)
differences in the number of organisms living at different depths.
22.
Which of the following is correct when convection occurs in the atmosphere?
a)
Cool air rises and warm air sinks.
b)
Cool air sinks and warm air rises.
c)
Cool and warm air sink.
d)
Cool and warm air rise.
23.
Inertia and the gravitational pull of the Moon on Earth are responsible for
a)
tides.
b)
solar eclipses.
c)
lunar eclipses.
d)
revolutions.
24.
What symbolizes the continental slope?
a)
1
b)
2
c)
3
d)
8
25.
What ocean connects to the Gulf of Mexico?
a)
Artic
b)
Indian
c)
Atlantic
d)
Pacific
26.
What symbolizes a seamount?
a)
2
b)
3
c)
6
d)
8
27.
What symbolizes a rift valley?
a)
2
b)
3
c)
4
d)
5
28.
Based on the map, which of the following statements best summarizes the movement of heat through the world's oceans?
a)
Warm water moves slower than the cool water.
b)
Warm water moves from the Atlantic Ocean to the Pacific Ocean.
c)
Cold water moves away from the equator and picks up heat near the poles.
d)
Heat energy is transported from areas near the equator to areas near the poles.
29.
From which ocean floor destination would a sonar signal take the longest amount of time to return to the receiver?
a)
a trench
b)
an abyssal plain
c)
a continental shelf
d)
a deep-ocean basin
30.
Starting in South America, if you were to travel due east around the world, in which order would you pass through Earth's oceans?
a)
Indian, Pacific, Atlantic
b)
Atlantic, Pacific, Indian
c)
Pacific, Indian, Atlantic
d)
Atlantic, Indian, Pacific
31.
Which number identifies the ocean's crust?
a)
2
b)
3
c)
4
d)
5
32.
Which of the following statements is true regarding ocean currents?
a)
They stay very close to the continent where they are formed.
b)
They cycle between continents on opposite sides of the oceans.
c)
They can only be found near the equator or near the poles.
d)
They move east and west but do not move north and south.
33.
What is the steepest part of the continental margin?
a)
continental shelf
b)
abyssal plain
c)
continental slope
d)
mid-ocean ridge
34.
Where is most of the Earth's freshwater located?
a)
in the ocean
b)
in icecaps and glaciers
c)
in rivers and streams
d)
in rivers and streams
35.
Which number identifies the continental shelf?
a)
1
b)
2
c)
3
d)
4
36.
Which letter on the diagram shows the region where coral reefs are most likely to be found?
a)
W
b)
X
c)
Y
d)
Z
37.
What is the most likely cause of ocean waves?
a)
temperature differences in the water
b)
density differences in the water
c)
changes in sunlight
d)
surface winds
38.
Which area on the diagram most likely has water with the highest salinity?
a)
W
b)
X
c)
Y
d)
Z
39.
At which point would a scientist be least likely to find plant life?
a)
V
b)
W
c)
X
d)
Y
40.
A student claims that a large percentage of water on Earth is immediately available to drink. Is he correct? Why or why not?
a)
He is correct because 2% of the water on Earth is immediately available to drink.
b)
He is correct because 97% of the water on Earth is immediately available to drink.
c)
He is incorrect because only 1% of the water on Earth is immediately available to drink.
d)
He is incorrect because only 2% of the water on Earth is immediately available to drink.
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