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ANSWER KEY
Weather Patterns
Chapter Project Worksheet 2
1. occluded; west
2. warm; southwest
3. cold; northeast
4. stationary; not moving
5. warm; east
6. cold; south
Air Masses and Fronts
Guided Reading and Study
Use Target Reading Skills This is one possible
way to complete the graphic organizer. Accept
all logical answers.
a. Clouds, possibly storms with heavy precipitation. b. A warm air mass overtakes a cold air
mass. c. Clouds, in light precipitation d. A
warm air mass is caught between two cold air
masses. e. Clouds, precipitation f. Cold and
warm air masses meet, but neither can move the
other. g. Clouds, precipitation.
1. An air mass is a huge body of air that has
similar temperature, humidity, and air pressure
at any given height.
2. temperature; humidity
3. False
4. a. Maritime tropical b. Maritime polar
c. Continental tropical d. Continental polar
e. They are alike in that they are both humid.
They are different in that the tropical air mass is
warm and the polar air mass is cool. f. They are
alike in that they are both dry. They are different
in that the tropical air mass is warm and the
polar air mass is cool.
5. west; east
6. As the jet streams blow from west to east,
air masses are carried along their track.
7. a. Cold front b. Warm front
8. c
9. a
10. d
11. b
12. a, b, c
13. cyclone
14. True
15. Storms and precipitation are associated
with cyclones.
16. True
17. Dry, clear weather is generally associated
with anticyclones.
Air Masses and Fronts
Review and Reinforce
1. Maritime tropical
2. Over ocean
3. Warm
4. Dry
5. Over land
6. Cold
7. air mass
8. Tropical
9. maritime
10. Polar
11. front
12. Continental
13. occluded
14. cyclone
15. Anticyclones
Air Masses and Fronts
Enrich
1. In Figure A, the air ahead of the warm air
mass is colder than the air behind the warm air
mass. In Figure B, the air behind the warm air
mass is colder than the air ahead of the warm air
mass.
2. The colder air mass is densest; the warm air
mass is least dense.
3. The warm front in Figure B doesn’t touch the
surface because it is less dense than either the
cold or colder air masses.
4. If both cold air masses had the same temperature, the air in them would mix when they
came into contact instead of forming a front. The
warm air would still be occluded, but there
would be no front between the two masses of
cold air.
5. You would expect clouds and precipitation
to form along both warm and cold fronts in each
type of occluded front.
Storms
Guided Reading and Study
Use Target Reading Skills This is one possible
way to complete the graphic organizer. Accept
all logical answers.
a. As air rises, more warm, moist air is drawn
into the system, and the hurricane gains energy.
b. As winds spiral inward, bands of high winds
and heavy rains form.
1. A storm is a violent disturbance in the
atmosphere.
2. d
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