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Oceans

Total questions: 45

Worksheet time: 27mins

Name
Class
Date
1.
Which of the following is NOT a way that oil spills are harmful?
a)
Animals get covered with oil and can die.
b)
We use oil to cook food.
c)
Explosions on oil drilling platforms can explode and cause deaths
d)
Fishermen are unable to earn money from fishing.
2.
Why does marine debris (trash) hurt our oceans?
a)
It gives birds a place to make their homes.
b)
It can harm animals that eat it or get tangled in it.
3.
What causes surface currents to move in curved paths?
a)
strong winds
b)
the Coriolis effect
c)
salinity
d)
the Global Ocean Conveyor
4.
Why would places near the north with the same latitude have very different climates?
a)
One place is near a warm ocean current.
b)
It is not possible
c)
Because of La Niña
d)
Because of El Niño
5.
________ is a climate event that occurs when surface waters in the eastern Pacific are colder than normal.
a)
La Niña
b)
El Niño
c)
Coriolis Effect
d)
Trade Winds
6.
____________ is an abnormal climate event that occurs every 2 to 12 years when surface waters in the Pacific are warmer than normal.
a)
El Niño
b)
La Niña
c)
Curse of the goat
d)
Curse of the Bambino
7.
Which of the following can be caused by El Niño?
a)
Flash floods
b)
Mudslides
c)
Droughts
d)
All of the above
8.
Where is ocean water the densest.
a)
The surface
b)
The middle
c)
The bottom
d)
Nowhere
9.
Two types of water currents are
a)
local and global
b)
sea and land
c)
surface and deep
d)
warm and cold
10.
Surface currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation (Coriolis Effect)
c)
Continental Deflections
d)
All of the above
11.

Deep Ocean currents are a result of

a)

Temperature

b)

Global Winds

c)

Salinity

d)

All of the above

12.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
13.
Cold ocean currents generally come from
a)
The North Pole 
b)
The South Pole
c)
The Equator
d)
Either Pole
14.

What % of the world is water?

a)

20%

b)

50%

c)

70%

d)

97%

15.
Review the graph showing marine fishing rates.If the fishing rate in Asia continues to grow, what will most likely happen as a result?
a)
The fish population will continue to rise.
b)
The U.S. human population will decline.
c)
A wide range in ocean temperatures will be seen worldwide.
d)
The overfishing will cause an imbalance in marine ecosystems.
16.

The Largest Ocean is ________________?

a)

Pacific

b)

Atlantic

c)

Indian

d)

Arctic

17.

The United States is bordered by the ___________________ and the _____________________ Ocean.

a)

Pacific and Atlantic

b)

Indian and Arctic

c)

Indian and Southern

d)

Southern and Pacific

18.

The following are the oceans according to size

a)

Pacific, Atlantic, Indian, Arctic, Southern

b)

Pacific, Indian, Atlantic, Arctic, Southern

c)

Atlantic, Pacific, Indian, Southern, Arctic

d)

Pacific, Atlantic, Indian, Southern, Arctic

19.

The _________ is located in the North Pole.

a)

Antarctic Ocean

b)

Southern Ocean

c)

Arctic Ocean

d)

Indian Ocean

20.
The Gulf Stream is a ______________ current.
a)
surface
b)
deep ocean
21.
Rainfall and river runoff cause the salinity to _________________. 
a)
increase
b)
decrease
22.
TRUE or FALSE
Ocean salinity is greater when there is ice formation and evaporation.
a)
TRUE
b)
FALSE
23.
TRUE or FALSE
As depth increases temperature also increases.
a)
TRUE
b)
FALSE
24.
TRUE or FALSE
Salinity of ocean water is not the same everywhere.
a)
TRUE
b)
FALSE
25.
TRUE or FALSE
The temperature of the ocean is different depending on where you are.
a)
TRUE
b)
FALSE
26.

What might happen if warm and cool currents did not move through the ocean's waters?

a)

Ocean temperatures would become either too hot or too cold to support life.

b)

Climates on land might be extremely different.

c)

There would be no ocean tides.

d)

The pace of global warming would accelerate.

27.

One direct effect of the Gulf Stream is that:

a)

Northwestern Europe tends to be warmer than northeastern North America

b)

Africa is the hottest continent on the planet

c)

The climate of Australia is warm enough to support human life

d)

Antarctica is the coldest continent on the planet

28.
What is salinity?
a)
the amount of sodium in liquid
b)
the amount of water that has evaporated
c)
the amount of dissolved salts in a liquid
d)
the amount of solids in a liquid
29.
Which of the following statement about salt in the oceans is true?
a)
It is sodium chloride
b)
it is less salty that salt we eat
c)
it has been in the ocean for only 50 years
d)
it is saltier than the salt we eat
30.
Which process does NOT lead to a decrease in the salinity of water?
a)
runoff from land
b)
precipitation
c)
sea ice melting
d)
evaporation
31.
An ocean current moving from the equator toward a pole is
a)
cold
b)
warm
c)
cold in the Northern Hemisphere and warm in the South Hemisphere
d)
warm in the Northern Hemisphere and cold in the Southern Hemisphere
32.
The five huge circular-moving systems of ocean surface currents are called
a)
density currents
b)
fetches
c)
drifts
d)
gyres
33.
currents that bring water from high latitude regions to low latitude regions effect climate by
a)
bringing colder water to warm regions regulating temperature 
b)
bringing even warmer water to hot areas creating tropical climates
c)
currents dont affect the climate
d)
i hate the ocean
34.

Which is not true about ocean gyres?

a)

It is a large system of circular ocean current

b)

It is formed by global wind patterns

c)

It is not affected by the Earth's rotation

d)

It's circular motion is affected by Coriolis Effect

35.

Which picture shows the real reason why the Earth's surface have different temperatures?

a)
b)
c)
d)
36.

At which point of the Earth does warm ocean water rises?

a)

A

b)

B

c)

C

d)

D

37.

How do ocean currents affect the climate?

a)

They redistribute heat all over the world

b)

They regulate nutrients of the ocean all over the world

c)

They bring the summer season to cold places

d)

They bring the winter season to warm places

38.
The total amount of dissolved salts in a sample of water is its
a)
strength
b)
salinity
c)
pressure
d)
effect
39.

Currents affect climate by cooling or warming the _________________ above it.

a)

sun

b)

shelf

c)

plain

d)

air

40.
The ________________ Ocean is the warmest ocean on Earth.
a)
Indian
b)
Pacific
c)
Atlantic
d)
Arctic
41.
Oil spills in the ocean kill _______. 
a)
giraffes, cheetahs, and flies
b)
kittens, puppies, and guinea pigs
c)
fish, plankton, and birds
42.
Moving streams of water in the ocean are called ______.
a)
Surface
b)
Shore
c)
Currents 
43.

Which heats up faster the sand at the beach or the ocean water.

a)

Sand at the beach

b)

Ocean water

44.

It is important that humans take care of the oceans. What are some ways you can keep the ocean healthy?

a)

Pick up the trash on beach

b)

Use fewer plastic

c)

Influence change in your community

d)

All above.

45.

An ocean current moving from a pole toward the equator is

a)

cold

b)

warm

c)

cold in the Northern Hemisphere and warm in the South Hemisphere

d)

warm in the Northern Hemisphere and cold in the Southern Hemisphere

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