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Ocean and Currents Review

Total questions: 55

Worksheet time: 29mins

Name
Class
Date
1.
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
2.

The largest of Earth's oceans is

a)

Indian

b)

Atlantic

c)

Pacific

d)

Southern

e)

Arctic

3.

_______% of the planet is covered by oceans

a)

97%

b)

70%

c)

2%

d)

100%

4.

The two most abundant elements that make up water are?

a)

Chlorine

b)

Sodium

c)

Hydrogen

d)

Oxygen

e)

Magnesium

5.

The ocean helps distribute ___________ around the globe.

a)

cold

b)

heat

c)

ice

d)

ships

6.

A ____________ is a continuous flow of water in a particular direction.

a)

current

b)

upswell

c)

downswell

d)

wave

7.

Currents are created mainly by

a)

surface winds

b)

heat

c)

boats

d)

whales

8.

__________ water is transported from the equator towards the poles

a)

warm

b)

cold

9.

__________ water is transported from the poles towards the equator.

a)

warm

b)

cold

10.

Ocean currents help to regulate global climate even if an area is hundreds of miles from the coast.

a)

True

b)

False

c)

Tralse

11.

If we did not have ocean currents, regional temperatures near the poles would be very

a)

hot

b)

frigid

c)

mild

d)

windy

12.

If we did not have ocean currents, temperatures near the equator would be very

a)

hot

b)

frigid

c)

mild

d)

there would be no change

13.

The Gulf Stream is a powerful, _________, swift ocean current in the Atlantic

a)

cold

b)

warm

c)

weak

d)

blue

14.

The Coriolis Effect is caused by the Earth __________

a)

being in space

b)

rotating on its axis

c)

gravitational pull

d)

underwater volcanoes

15.

Circulating air is deflected toward the _______ in the Northern Hemisphere

a)

left

b)

right

c)

up

d)

down

16.

Circulating air is deflected toward the __________ in the Southern Hemisphere.

a)

left

b)

right

c)

up

d)

down

17.

The Gulf Stream originates in the

a)

Gulf of Mexico

b)

Pacific Ocean

c)

Indian Ocean

d)

Arctic Ocean

18.

Europe has ____________ temperatures because of the Gulf Stream

a)

colder

b)

windier

c)

milder

d)

snowier

19.

The amount of dissolved salt in the water is called

a)

mineral water

b)

H20

c)

Salinity

d)

Soda

20.

Average ocean salinity is _________ grams of salt for every 1000 grams of seawater

a)

5

b)

35

c)

75

d)

100

21.

Average river water has a salinity of _________ ppt.

a)

0

b)

.5

c)

35

d)

50

22.

___________ is affected by salinity

a)

blueness

b)

swimming

c)

density

d)

salinity

23.

Cooler, saltier water is ___________ dense.

a)

less

b)

more

c)

not at all

24.

Warmer, less saltier water is ___________ dense.

a)

more

b)

less

c)

not at all

25.

The Great Salt Lake (in Utah) has very high salinity. This makes it easy to ___________.

a)

clean

b)

dive

c)

float

d)

catch fish

26.

Water with colder temperatures is

a)

more dense

b)

less dense

c)

not dense

27.

Water with warmer temperatures is

a)

more dense

b)

less dense

c)

not dense

28.

What type of currents move warm water towards the surface and cold water deeper into the ocean?

a)

Coriolis

b)

Gulf Stream

c)

Convection

d)

Waves

29.

Tides are caused by gravitational attraction of the

a)

moon

b)

sun

c)

mars

d)

pluto

30.

Because of Earths rotation, ___________ happen twice a day.

a)

tides

b)

hurricanes

c)

upswells

d)

currents

31.

Oceanic crust is different from continental crust in these two ways

a)

older

b)

younger

c)

thicker

d)

thinner

32.

Magma rises, _________, and solidifies forming new igneous rock.

a)

warms

b)

cools

33.

deep channels cut through the continental shelf

a)

shelf

b)

abyssal plain

c)

trench

d)

submarine canyons

34.

underwater plain usually lying between the continental rise and mid-ocean ridge - covers more than 50% of the Earth's surface.

a)

submarine canyons

b)

abyssal plain

c)

trench

d)

sea mounts

35.

long, narrow depressions on the seafloor formed when plates collide.

a)

submarine canyons

b)

abyssal plain

c)

trench

d)

mariana

36.

The Mariana Trench is the deepest part of the ocean, almost ____ miles deep.

a)

7

b)

20

c)

30

d)

100

37.

sea mounts that break the surface

a)

submarine canyons

b)

abyssal plain

c)

sea mounts

d)

volcanic island

38.
As you go deeper in the ocean, the water is colder and less salty.
a)
True
b)
False
39.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
40.
Cold ocean currents generally come from
a)
The North Pole 
b)
The South Pole
c)
The Equator
d)
Both A and B
41.
Why does heat rise in a convection current?
a)
less dense
b)
more dense
c)
more humid
d)
less humid
42.
Why does cold water sink in a convection current?
a)
Less dense
b)
more dense
c)
Less humid
d)
More humid
43.

Which of the following decreases as you move to the bottom of the ocean.

a)

Darkness

b)

Temperature

c)

Salinity

d)

Pressure

44.
the rise and fall of the ocean caused by the moon's gravitational pull
a)
erosion
b)
sediment
c)
tide
d)
wave
45.
Identify the ocean at location #2
a)
Indian Ocean
b)
Pacific Ocean
c)
Southern Ocean
d)
Arctic Ocean
46.

Name Continent A!

a)

North America

b)

Africa

c)

United States

d)

Asia

47.

Name Continent B!

a)

South America

b)

Europe

c)

Mexico

d)

Africa

48.

Name Continent C!

a)

Antarctica

b)

Europe

c)

Asia

d)

Africa

49.

Name Continent D!

a)

Asia

b)

North America

c)

Europe

d)

Africa

50.

Continent E is ________.

a)

North America

b)

Africa

c)

Asia

d)

South America

51.

Continent G is ________.

a)

Asia

b)

Antarctica

c)

Arctic

d)

Australia

52.

Name Ocean #1!

a)

Indian

b)

Pacific

c)

Atlantic

d)

Gulf of Mexico

53.
a)
Arctic Ocean
b)
Atlantic Ocean
c)
Indian Ocean
d)
Pacific Ocean
54.
a)

North America

b)

Antarctica

c)

Australia

d)

Asia

55.
a)
Indian Ocean
b)
Arctic Ocean
c)
Pacific Ocean
d)
Atlantic Ocean