WorksheetsOcean Currents
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which of the following describes Southern Hemisphere ocean water circulation?
a)
back and forth
b)
clockwise
c)
north and south
d)
counterclockwise
2.
What is the Coriolis effect?
a)
trade winds blowing north
b)
rotation of Earth
c)
trade winds blowing south
d)
more direct sunlight increases temperature
3.
Cold waters from polar regions move along which coast?
a)
North
b)
South
c)
East
d)
West
4.
What is the name for the process by which deep waters rise up when surface currents separate?
a)
upwelling
b)
coriolis effect
c)
thermohaline circulation
d)
gravity
5.
Which pair of factors creates gyres?
a)
temperature and wind
b)
gyres do not exist
c)
gravity and wind
d)
temperature and depth
6.
Why does water flowing into the cold North Atlantic gain a higher salt concentration?
a)
The water is consumed by larger fish populations
b)
Salt builds up in colder temperatures
c)
The surface water trades places with deep water
d)
Much of the water evaporates and freezes
7.
Which of the following is a current threat to thermohaline circulation?
a)
global warming
b)
lack of biodiersity
c)
overfishing
d)
none of the above
8.
In which direction does El Nino blow surface waters?
a)
north
b)
west
c)
east
d)
south
9.
El Nino makes Southeastern US...
a)
colder
b)
drier
c)
warmer
d)
El Nino only occurs in the Southern Hemisphere
10.
Bonus: How many oceans are there on Earth?
a)
4
b)
5
c)
6
d)
What's an ocean?
100 %
