wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Ocean Currents

Total questions: 20

Worksheet time: 17mins

Name
Class
Date
1.

The main cause of thermohaline currents is

a)

wind

b)

earthquakes

c)

density

d)

pressure

2.

Which is not true about salty water?

a)

Floats on top of freshwater

b)

Higher density

c)

It has more molecules than freshwater

d)

It sinks at the bottom of a container

3.

What does the blue line represent in the Thermohaline circulation?

a)

Warm salty water

b)

Warm water

c)

Cold water

d)

Cold salty water

4.

Which pictures shows the correct "Global Conveyor Belt"?

a)
b)
c)
d)
5.

Which of the following types of water would SINK the fastest?

a)

warm and salty

b)

cold and salty

c)

warm and fresh

d)

cold and fresh

6.

Oceans cover about ______ of the surface of the earth.

a)

60%

b)

70%

c)

80%

d)

90%

7.

The following are the oceans according to size

a)

Pacific, Atlantic, Indian, Arctic, Antarctic

b)

Pacific, Indian, Atlantic, Arctic, Antarctic

c)

Atlantic, Pacific, Indian, Antarctic, Arctic

d)

Pacific, Atlantic, Indian, Antarctic, Arctic

8.

Smaller bodies of salt water are called

a)

seas

b)

lakes

c)

oceans

d)

rivers

9.

The deepest parts of the ocean are called

a)

trenches

b)

abyss

c)

deep sea plain

d)

guyot

10.
Two types of ocean currents are
a)
local and global
b)
sea and land
c)
surface and deep
d)
warm and cold
11.
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
12.
Surface currents are mainly caused by
a)
The Coriolis Effect
b)
Cold and Warm Water
c)
Convection
d)
Wind
13.
Ocean currents move energy in the form of
a)
Salt
b)
Water
c)
Heat
d)
Oxygen
14.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
15.

________ 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

16.

The more scientific name of the Global Conveyor Belt is _____.

a)

halinethermal circulation

b)

thermohaline circulation

c)

thermodensity circulation

17.

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

18.
As you go deeper in the ocean, the water is colder and less salty.
a)
True
b)
False
19.
Movements of ocean water in a continuous flow are called?
a)
ocean currents
b)
global winds
c)
air mass
d)
front
20.

The changes in condition of the atmosphere at a particular place over a short period of time

a)

climate

b)

weather

c)

plate tectonics