Name: 
 

Weather Lesson 7



True/False
Indicate whether the statement is true or false.
 

 1. 

Warm fronts are pushed back by cold air.
 

 2. 

Humidity is the amount of water vapor in the air.
 

 3. 

Cold air has higher pressure than warm air.
 

 4. 

Cold air masses that form in polar regions are cold and moist.
 

 5. 

Air masses that form in tropical regions are warm and moist.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 6. 

A large region of air that has the same temperature and moisture is called a(n) ___________ .
A.
air area
B.
air mass
C.
air pocket
D.
air region
 

 7. 

The force of air pushing on an area is __________.
A.
air mass
B.
air weight
C.
air density
D.
air pressure
 

 8. 

When cold air pushes into an area of warm air, a(n) __________ front forms.
A.
cold
B.
stationary
C.
violent
D.
warm
 

 9. 

When warm air pushes into an area of cold air, a(n) __________ front forms.
A.
stationary
B.
warm
C.
cold
D.
violent
 

 10. 

The measure of how high a place is above sea level is called __________ .
A.
longitude
B.
El Nino
C.
altitude
D.
latitude
 

 11. 

The measure of how far north or south a place is from the equator is called __________ .
A.
El Nino
B.
longitude
C.
altitude
D.
latitude
 

 12. 

Rain may last for several days during a __________ front because the air masses do not move.
A.
warm
B.
stationary
C.
cold
D.
mild
 

 13. 

The boundary between air masses that have different temperatures is a(n)__________ .
A.
stationary front
B.
cold front
C.
warm front
D.
front
 

 14. 

This type of front often brings violent weather.
A.
cold
B.
cumulus
C.
warm
D.
stationary
 



 
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