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Oceans

Total questions: 58

Worksheet time: 43mins

Name
Class
Date
1.

______ causes surface currents.

a)

The Coriolis Effect

b)

gravity

c)

density differences

d)

wind

2.

______ causes deep ocean currents

a)

The Coriolis Effect

b)

gravity

c)

wind

d)

density differences

3.

Decreasing ocean temperature causes the density of the water to ______.

a)

decrease

b)

increase

c)

stay the same

d)

fluctuate

4.

As plants and animals in the ocean die, the nutrients produced from their decay _____.

a)

are recycled by the Global Conveyor Belt

b)

sink to the bottom

c)

are destroyed by sunlight

d)

become coral reefs

5.

Nutrients are brought to the surface for phytoplankton to use at _______.

a)

gyres

b)

eddies

c)

upwellings

d)

the equator

6.

_______ causes the Coriolis Effect

a)

Earth's rotation

b)

gravity

c)

wind

d)

density

7.

The __________ is a surface current that flows along the eastern US and brings warm water to Europe.

a)

California Current

b)

Gulf Current

c)

North American Gyre

d)

Arctic Current

8.

Gyres in the southern hemisphere are surface currents that turn _________ due to the Coriolis Effect.

a)

clockwise

b)

counterclockwise

c)

toward the right

d)

toward the bottom of the ocean

9.

________ and _______ affect the ocean's density and cause the Global Conveyor Belt to travel

a)

gravity and the Coriolis Effect

b)

temperature and salinity

c)

wind and climate

d)

temperature and the Coriolis Effect

10.

What are 4 oceans?

a)

Atlantic

b)

Pacific

c)

Arctic

d)

South African

e)

Indian

11.

Which ocean touches the U.S?

a)

Atlantic

b)

Indian

c)

South American

d)

American

12.

How many official oceans are there?

a)

3

b)

5

c)

4

d)

7

13.
Surface currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation
c)
Density
d)
All of the above
14.
Deep Ocean currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation
c)
Density
d)
All of the above
15.
The Coriolis Effect is caused by
a)
Earth rotating around the sun
b)
Earth rotating on its axis
c)
The tides
d)
Gravity
16.
The Gulf stream carries _____________ water from the east coast of The United States to the West coast of Europe.
a)
Cold
b)
Warm 
c)
Freezing
d)
Fresh
17.
Two types of water currents are
a)
local and global
b)
sea and land
c)
surface and deep
d)
warm and cold
18.
Ocean currents have an affect on which two things
a)
climate and weather
b)
temperature and density
c)
land and sea
d)
equator and poles
19.
What causes wind to blow?
a)
Animal movement
b)
Similar air temperatures
c)
A giant blowing out candles
d)
Differences in air temperature
20.
Air travels in patterns around the Earth called
a)
Global Winds
b)
Local Winds
c)
Ocean Winds
d)
Blowing Winds
21.
Water travels in definite paths around the ocean called
a)
Highways
b)
Currents
c)
Rivers
d)
Streams
22.
Currents that occur at or near the surface of the ocean are called 
a)
Deep Currents
b)
Convection Currents
c)
Surface Currents
d)
Wave Currents
23.
Surface currents are mainly caused by
a)
The Coriolis Effect
b)
Cold and Warm Water
c)
Convection
d)
Wind
24.
The warm, strong current off the coast of Florida is the 
a)
Gulf Stream
b)
California Current
c)
North Equatorial Current
d)
Brazil Current
25.
When a current bounces off a continent and changes direction, this is called
a)
Global Winds
b)
Deflection
c)
The Coriolis Effect
d)
Redirection
26.
The deflection of currents due to Earth's rotation is called the
a)
Rotation Effect
b)
Current Effect
c)
Coriolis Effect
d)
Deflection Effect
27.
Winds cause surface currents and winds are created by the 
a)
Sun
b)
Moon
c)
Tides
d)
Coriolis Effect
28.
Surface currents and deep currents join together to make a
a)
Deep Sea Current
b)
Warm Current
c)
Cold Current
d)
Convection Current
29.
What is the process where cold, deep water rises to the surface with nutrients?
a)
Upwelling
b)
Downwelling
c)
Swelling
d)
Tides
30.
Upwelling provides _________ for many sea organisms.
a)
Water
b)
Nutrients
c)
Air
d)
Heat
31.
Ocean currents bring warm water from the equator towards Earth's
a)
Southern Hemisphere
b)
Continents
c)
Equator
d)
Poles
32.
Currents release heat energy and this can affect an area's
a)
Oxygen
b)
Climate
c)
Upwelling
d)
Sunlight
33.
As Density  increases
a)
Temperature decreases
b)
Temperature increases
34.
Temperature  increases
a)
Density increases
b)
Density decreases
35.
As salinity  increases
a)
Density increases
b)
Density decreases
36.
Ocean depth  increases & Salinity  increases then
a)
Temperature decreases because cold water is more dense and sinks
b)
Temperature increases because cold water is more dense and sinks
37.
True or False Salinity increases as ocean depth increases.
a)
True
b)
False
38.
Briefly describe the overall relationship between temperature and density.
a)
Lower temperature water has higher density, warmer water has lower density
b)
Lower temperature water has lower density, warmer water has higher density
39.
In addition to salinity, what factor affects the density of seawater?
a)
depth
b)
latitude
c)
temperature
d)
salt content
40.
What is the most abundant salt in the sea?
a)
calcium chloride
b)
potassium chloride
c)
magnesium chloride
d)
sodium chloride
41.
The highest salinity would be found in which of the following areas?
a)
an area with high rates of precipitation
b)
an area with high rates of evaporation
c)
an area with plenty of runoff
d)
all of the above
42.
What term is the measure of dissolved salts in water?
a)
Thermocline
b)
Salinity
c)
Saltiness
d)
Tides
43.
Which represents the distribution of water on Earth?
a)
3% freshwater, 97% salt water
b)
97% freshwater, 3% salt water
c)
71% freshwater, 29% salt water
d)
29% freshwater, 71% salt water
44.
Where is most of the freshwater found on Earth?
a)
lakes
b)
glaciers
c)
oceans
d)
rivers
45.
The supply of freshwater under the Earth's surface.
a)
watershed
b)
mouth
c)
headwaters
d)
groundwater
46.
As we go deeper into the ocean, salinity ___________. 
a)
Doubles
b)
Decreases 
c)
Increases
d)
Remains the same 
47.

What is the major source of drinking water for humans?

a)

lake water

b)

frozen water

c)

ocean water

d)

ground water

48.

The process where rain soaks into the ground

a)

transpiration

b)

infiltration

c)

evaporation

d)

precipitation

49.

How much water on earth is usable for humans?

a)

3%

b)

5%

c)

1%

d)

2%

50.

About how much of the Earth's water is saltwater?

a)

1%

b)

75%

c)

3%

d)

97%

51.

What is responsible for cloud formation?

a)

condensation

b)

precipitation

c)

transpiration

d)

evaporation

52.
What two factors are primarily used to describe climate?
a)
temperature and density
b)
temperature and precipitation
c)
precipitation and density
d)
winds and humidity
53.
Which causes the subtropical jet stream to bring cold, wet winter weather to the southeastern United States?
a)
El Niño
b)
La Nina
c)
Coriolis effect
d)
Santa Anna Winds
54.
What is the cause of rising surface temperatures of the Pacific Ocean, drought in the western United States, and flooding on the Pacific coast of South America?
a)
the Gulf Stream
b)
the Jet Stream
c)
La Nina
d)
El Nino
55.
Which lists some effects of El Niño?
a)
warmer temperatures and more rain
b)
warmer temperatures and less rain
c)
cooler temperatures and less rain
56.
Which causes North Carolina to experience an increase in winter precipitation?
a)
El Niño
b)
La Niña
c)
trade winds
d)
prevailing westerlies
57.
Which is an effect of La Niña on North Carolina’s summer weather?
a)
decreased winds
b)
decreased rainfall
c)
increased humidity
d)
increased temperature
58.
Which weather conditions are associated with El Niño?
a)
increased temperature, increased precipitation
b)
decreased temperature, increased precipitation
c)
increased temperature, decreased precipitation
d)
decreased temperature, decreased precipitation

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