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WorksheetsMNHS Ocean and Wind Current Review
Total questions: 69
Worksheet time: 4hrs 33mins
Surface currents are a result of
Global Wind Patterns
Density
Earth's Rotation
All of the above
Deep Ocean currents are a result of
Global Wind Patterns
Earth's Rotation
Density
All of the above
The Coriolis Effect is caused by
Earth rotating around the sun
Earth rotating on its axis
The tides
Gravity
The Gulf stream carries _____________ water from the east coast of The United States to the West coast of Europe.
Cold
Warm
Freezing
Fresh
What is a circular system of currents in the Earth's major oceans?
ocean current
gyre
upwelling
conveyor belt
Regular movements of water far below the oceans surface are called
Warm Currents
Deep Currents
Shallow Currents
Surface Currents
Where is ocean water the densest.
The surface
The middle
The bottom
Lake Michigan
What causes surface currents north and south of the equator to move in different directions?
Gases in the ocean
The rotation of the Earth
Temperature differences
Continental deflection
How does air move away from the poles and toward the equator?
Warm air near the equator rises and moves to the poles.
Cool air at the poles sinks and moves to the equator.
Warm air at the poles sinks and moves to the equator.
Cold air near the equator rises and moves to the poles.
Why are surface currents at the surface of the ocean?
colder temperature
colder temperature & more salinty
warmer temperature & less salinty
less salinty
Ocean currents affect climates around the world. Based on the map, which area MOST likely has a warmer climate than expected?
1
2
3
4
Ocean currents bring warm water from the equator towards Earth's
Southern Hemisphere
Continents
Equator
Poles
_________ and ________ affect the ocean's density and cause the Global Conveyor Belt to travel
gravity and the Coriolis Effect
temperature and salinity
wind and climate
temperature and the Coriolis Effect
Constantly moving system of deep-ocean circulation driven by temperature and salinity. It moves water around the globe.
California Current
Global Conveyor Belt
Surface Currents
Gulf Stream
What is upwelling?
When hot water and cold water mix
When winds push the warm water and cold nutrient rich water replaces it at the surface
When the cold nutrient rich water sinks to the bottom
When the hot water with nutrients rises to the surface
Why is wind important for upwelling?
Wind moves the fish
Wind is needed to push the cold water from the surface
Wind is needed to push the warm water away from the surface
Wind drops the nutrients in the ocean
Why do nutrients need to be at the surface?
Food for zooplankton
Fertilizer for phytoplankton
Food for salmon
Doesn't matter
Why is upwelling important?
Brings up fertilizer for phytoplankton to bloom
Causes hot water to move
Feeds the salmon
Moves around the wind
Why is phytoplankton important? Select all that are true
They provide 90% of the world's oxygen
They provide 50% of world's oxygen
They eat orca whales
They are the basis of the marine food chain
During El Nino Events when the California Current is weakened and upwelling lessens, the Peruvian anchovy industry is
negatively impacted (Fisheries Crash)
Positively Impacted (Fisheries thrive)
What causes winds to form?
areas of low pressure moving to areas of high pressure
air moving vertically in the atmosphere
gravity
uneven heating of Earth's surfaces
Which of the following shows how air moves around areas of high pressure?
Air moves OUT OF or AWAY from areas of high pressure.
Air moves INTO or TOWARDS areas of high pressure.
Air can either move INTO our OUT OF areas of high pressure.
Which of the following describes the general air pressure at the equator (0 degrees) and at the poles (90 degrees)?
There is HIGH pressure at the poles and LOW pressure at the equator.
There is LOW pressure at the poles and high pressure at the equator.
The pressure is LOW at both the equator and poles.
The pressure is HIGH at both the equator and poles.
Winds would generally just move north and south, but they tend to "curve" away from their intended path because of
gravity.
convection.
Earth's rotation.
temperature differences on Earth.
The term "prevailing wind" describes
what the wind is doing outside right now.
the usual or average direction that winds come from.
the usual or average direction that winds blow to.
"Wind belts" are areas of wind that have the same prevailing direction. These belts happen every __ degrees of latitude.
10
20
30
60
In which wind belt do we live?
Trade Winds
Doldrums
Easterlies
Westerlies
What is the prevailing wind direction in our area?
southwest to northeast
northwest to southeast
northeast to southwest
southeast to northwest
What is the wind direction shown in this image?
southeast
northwest
east
northeast
southwest
What is a land breeze?
Wind coming from water
Wind coming from land
Wind coming from grass
Wind coming from trees
What is a sea breeze?
Wind from the sea
Wind from the land
Wind from the grass
Wind from the trees
Sea breezes happen during...
The night
The morning
The day
The evening
Land breezes happen during...
The evening
The morning
The day
The night
There is pressure over the sea during the day and pressure over the sea at night.
high/low
low/high
high/high
low/low
There is pressure over the land during the day and pressure during the night.
high/low
low/high
high/high
low/low
What causes wind and currents?
Different pressures
Clouds
Uneven heating of the earth
Nothing, they happen on their own
High pressure causes...
Cold gloomy weather
Happy sunny weather
Nice weather
Rainy weather
Low pressure causes...
Amazing weather
Sunny weather
Rainy cloudy gloomy weather
No werather
A low pressure system rotates counterclockwise while a high pressure system rotates clockwise
True
False
A wind that blows over short distances.
global wind
local wind
polar easterlies
jet stream
Winds that blow steadily from specific directions over long distances.
global wind
local wind
polar easterlies
jet stream
Land breeze, sea breeze, mountain breeze, and valley breeze are all examples of
global wind
local wind
polar easterlies
jet stream
A global wind that occurs near the equator.
trade winds
prevailing westerlies
polar easterlies
coriolis effect
What global wind occurs near the North and South poles?
trade winds
prevailing westerlies
polar easterlies
coriolis effect
Which global wind occurs in the middle latitudes of the earth (30 degrees - 60 degrees in both hemispheres)?
trade winds
prevailing westerlies
polar easterlies
coriolis effect
Which global wind is A?
Polar Easterlies
Prevailing Westerlies
Trade Winds
Which global wind is B?
Polar Easterlies
Prevailing Westerlies
Trade Winds
Which global wind is C?
Polar Easterlies
Prevailing Westerlies
Trade Winds
Which global wind is D?
Polar Easterlies
Prevailing Westerlies
Trade Winds
Which global wind is E?
Polar Easterlies
Prevailing Westerlies
Trade Winds
Which global wind is F?
Polar Easterlies
Prevailing Westerlies
Trade Winds
Which best describes the ocean's global circulation system?
The ocean’s global circulation system plays a key role in distributing heat energy.
The ocean’s global circulation system plays a key role in regulating weather and climate.
The ocean’s global circulation system plays a key role in cycling vital nutrients and gases.
Well, well, well- ALL OF THE ABOVE- you've done it again.
What typically influences deep ocean currents?
wind & atmospheric conditions
density, which is affected by temperature & salinity (salt)
What typically influences surface ocean currents?
wind & atmospheric conditions
density, which is affected by temperature & salinity (salt)
