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Air and Ocean Currents

Total questions: 34

Worksheet time: 23mins

Name
Class
Date
1.
A front is
a)
where warm air is cooling at earth's surface
b)
a line where hot and cold air are separating
c)
a line where two different air masses meet
d)
where cold air is rising and forming rain clouds
2.
Which of the following types of weather would probably have the strongest winds?
a)
thunderstorms
b)
hurricanes
c)
blizzards
d)
sunny day
3.
A person that studies, reports and forecast weather conditions is a
a)
radiologist
b)
geologist
c)
astronomer
d)
meteorologist
4.
What are the yearly conditions of temperature, precipitation and humidity?
a)
weather
b)
climate
5.
What imaginary line divides our world into the northern and southern hemispheres?
a)
equator
b)
international date line
6.

As you move towards the poles, what happens to temperature?

a)

temperature becomes hotter

b)

temperature becomes colder

7.
What are the imaginary lines that determine weather patterns and run parallel to the equator?
a)
latitude
b)
longitude
8.
What are the daily conditions of temperature, humidity and precipitation?
a)
weather
b)
climate
9.
What is the condition of the Earth's atmosphere at a certain time and place?
a)
climate
b)
temperature
c)
weather
d)
air pressure
10.
What is the weather conditions in an area over a long period of time?
a)
climate
b)
temperature
c)
elevation
d)
precipitation
11.
What causes surface currents to move in circular paths?
a)
strong winds
b)
the Coriolis effect
c)
salinity
d)
the Global Ocean Conveyor
12.
Which of the following is caused by differences in ocean water density?
a)
surface currents
b)
 deep currents
c)
waves
d)
Coriolis effect
13.
Upwelling is associated with
a)
a decrease in access to nutrients for phytoplankton
b)
cooler, nutrient-rich waters being pushed up from deeper ocean waters
c)
temperature gradients moving water from the equator to the poles
d)
an increase in human fatalities
14.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
15.
A measure of the amount of dissolved salts in a given amount of liquids is called: 
a)
salinity
b)
density
c)
deflection
d)
upwelling
16.
A measure of how much mass is contained in a given unit of volume (=mass/volume) is called:
a)
salinity
b)
density
c)
current
d)
thermohaline
17.
A movement of ocean water that follows a regular pattern is called a/an: 
a)
Coriolis Effect
b)
continental deflection
c)
ocean current
d)
global winds
18.
A horizontal movement of ocean water that is caused by wind and that occurs at or near the ocean’s surface is called:
a)
ocean current
b)
deep current
c)
convection current
d)
surface current
19.
Any movement of matter that results in differences in density; may be vertical, circular, or cyclical is called: 
a)
surface current
b)
deep current
c)
upwelling
d)
convection current
20.
What three things affect surface currents?
a)
coriolis effect, deep currents, upwelling
b)
upwelling, continental deflections, salinity
c)
coriolis effect, continental deflections, global winds
d)
global winds, the equator, deep currents
21.
The density of ocean water depends on what two factors?
a)
temperature and global winds
b)
temperature and nutrients
c)
salinity and upwelling
d)
salinity and temperature
22.

A Polar Vortex is always at the poles.

a)

true

b)

false

23.

A Polar Vortex is

a)

A movie about Santa Claus

b)

A type of bear

c)

A warm winter

d)

Low pressure and cold air

24.

A freeze occurs when the temperature drops below 32°F

a)

true

b)

false

25.

Surface Currents are caused by......

a)

Global Winds

b)

Coriolis Effect

c)

Continental Deflection

d)

All of these

26.
The California Current (west coast) carries _________ water from canada
a)
Cold 
b)
Warm
c)
Freezing
d)
Fresh
27.

What is the jet stream?

a)

Precipitation in North Carolina

b)

Weather over a long period of time

c)

Strong winds above the Earth's surface

d)

Football flying over the Earth

28.

Which best describes the Gulf Stream?

a)

an ocean current which originates in the Gulf of Mexico and causes warm water to travel up the east coast of the United States

b)

an ocean current which originates in the Gulf of Mexico and causes cool water to travel up the east coast of the United States

c)

an ocean current which originates in the Gulf of Mexico and causes warm water to travel down the east coast of Mexico

d)

an ocean current which originates in the Gulf of Mexico and causes cool water to travel down the east coast of Mexico

29.
Which lists some effects of El Niño?
a)
warmer temperatures and more rain
b)
warmer temperatures and less rain
c)
cooler temperatures and less rain
30.
Which weather conditions are associated with El Niño?
a)
increased temperature, increased precipitation
b)
decreased temperature, increased precipitation
c)
increased temperature, decreased precipitation
d)
decreased temperature, decreased precipitation
31.
What happens to particles as they are heated?
a)
move faster and farther apart
b)
become more dense
c)
more slower and closer together
d)
they sink
32.
How do particles move as they are cooled?
a)
faster and farther apart
b)
slower and become less dense
c)
slower and closer together
d)
faster and become more dense
33.
How do salinity and temperature affect the density of ocean water?
a)
salinity increase = density increase, temp decrease = density increase
b)
salinity decrease = density increase, temp. decrease = density decrease
c)
salinity increase = density increase, temp increase = density increase
d)
salinity decrease = density increase, temp increase = density increase 
34.
The change in direction as currents meet continents is referred to as what?
a)
Evaporation
b)
Transpiration
c)
Continental Deflection
d)
Corilois Effect

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