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WorksheetsEARTH ENERGY: Ocean Currents 2
Total questions: 14
Worksheet time: 18mins
Name
Class
Date
1.
Temperatures affect deep ocean currents.
a)
true
b)
false
2.
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
3.
The Gulf Stream is a current that brings warm ocean water from the south to the north.
a)
conduction
b)
convection
c)
radiation
4.
In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.
a)
conduction
b)
convection
c)
radiation
5.
What causes surface currents to move in circular paths?
a)
strong winds
b)
the Coriolis effect
c)
salinity
d)
the Global Ocean Conveyor
6.
Deep currents are caused by differences in the _______________ ocean water.
a)
eutrophication of
b)
sun's effect on
c)
density of
d)
salinity of
7.
______ causes surface currents.
a)
The Coriolis Effect
b)
gravity
c)
density differences
d)
wind
8.
Decreasing ocean temperature causes the density of the water to ______.
a)
decrease
b)
increase
c)
stay the same
d)
fluctuate
9.
What might happen if the global conveyor stopped?
a)
Marine life would get too much oxygen
b)
Marine life would get too little oxygen
c)
There would be no effect
d)
There would be a new ice age
10.
Why was a plastic toy spill so helpful to scientists studying ocean currents?
a)
The toys showed them where the sea floor was.
b)
The ducks showed that wind currents are real.
c)
The Ducks helped them discover trade winds.
d)
The ducks gave scientists lots of data to study ocean currents.
11.
The Gulf Stream carries warm water to the North Atlantic Ocean, which contributes to
a)
a mild climate for the British Isles.
b)
a harsh winter in the British Isles.
c)
a cold-water surface current that flows to the British Isles.
d)
a warm-water surface current that flows along the coast of California.
12.
Ocean currents affect climates around the world. Based on the map, which area MOST likely has a warmer climate than expected?
a)
1
b)
2
c)
3
d)
4
13.
Ocean currents bring warm water from the equator towards Earth's
a)
Southern Hemisphere
b)
Continents
c)
Equator
d)
Poles
14.
A hurricane forms over the Atlantic Ocean. When it hits land and comes ashore, its wind speed decrease significantly. This happens because the hurricane:
a)
gains more water from the flooded land than the ocean
b)
meets a land breeze
c)
meets a stronger hurricane moving from land
d)
no longer gains energy from warm ocean water
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