Name ______

Weather on the Move

1. This is a large region of atmosphere air throughout has the same general properties.

a. Air massc. Low pressure system

b. High pressure systemd. Occluded system

2. An air mass gets characteristics from over the area where it formed.

a. Trueb. False

Match the air mass by its characteristics.

_____3. Air mass which formed over the Gulf of Mexico.
_____4. Air mass which formed over a warm, dry desert.
_____5. Air mass which formed over the north Atlantic and off the coast of Canada and Alaska.
_____6. Air masses which originate in higher latitudes. / A. Cool and Moist
B. Cold and dry
C. Dry and warm
D. Warm and moist

7. When two air masses meet, a boundary between air masses form. This boundary called a front.

a. Trueb. False

8. This forms when a moving warm air mass meets a cold air mass.

a. Cold frontc. Stationary front

b. Occluded frontd. Warm front

9. When a warm, less dense air mass meets a cool air mass, the warm air…

a. moves over the cold air mass.c. stops moving.

b. moves under the cold air mass.

10. A cold air mass is ______then a warm air mass.

a. denserb. less dense

11. Warm fronts bring…

a. dry weather followed by cold weather.

b. dry weather followed by warm weather.

c. steady heavy precipitation followed by cold weather.

d. steady light precipitation followed by warm weather.

12. When a cooler, less dense air mass meets a warm air mass, the cooler air…

a. moves over the warm air mass.c. stops moving.

b. moves under the warm air mass.

Weather on the Move – Key I

1. This is a large region of atmosphere air throughout has the same general properties.

a. Air massc. Low pressure system

b. High pressure systemd. Occluded system

a. Air mass

2. An air mass gets characteristics from over the area where it formed.

a. Trueb. False

a. True

Match the air mass by its characteristics.

_____3. Air mass which formed over the Gulf of Mexico.
_____4. Air mass which formed over a warm, dry desert.
_____5. Air mass which formed over the north Atlantic and off the coast of Canada and Alaska.
_____6. Air masses which originate in higher latitudes. / A. Cool and Moist
B. Cold and dry
C. Dry and warm
D. Warm and moist

D 3. Air mass which formed over the Gulf of Mexico.

C 4. Air mass which formed over a warm, dry desert. dry and warm

A 5. Air mass which formed over the north Atlantic and off the coast of Canada and Alaska.

B 6. Air masses which originate in higher latitudes.

7. When two air masses meet, a boundary between air masses form. This boundary called a front.

a. Trueb. False

a. True

8. This forms when a moving warm air mass meets a cold air mass.

a. Cold frontc. Stationary front

b. Occluded frontd. Warm front

d. Warm front

9. When a warm, less dense air mass meets a cool air mass, the warm air…

a. moves over the cold air mass.c. stops moving.

b. moves under the cold air mass.

a. moves over the cold air mass.

10. A cold air mass is ______then a warm air mass.

a. denserb. less dense

a. denser

11. Warm fronts bring…

a. dry weather followed by cold weather.

b. dry weather followed by warm weather.

c. steady heavy precipitation followed by cold weather.

d. steady light precipitation followed by warm weather.

d. steady light precipitation followed by warm weather.

12. When a cooler, less dense air mass meets a warm air mass, the cooler air…

a. moves over the warm air mass.c. stops moving.

b. moves under the warm air mass.

b. moves under the warm air mass.

Weather on the Move

Key II

1. a

2. a (2 choices)

3. D

4. C

5. A

6. B

7. a (2 choices)

8. d

9. a

10. a (2 choices)

11. d

12. b (3 choices)

Weather on the Move

Scoring Guide

12 – 4
11 – 3.5
10 – 3
9 – 2.5
8 – 2
7 – 1.5
6 – 1
1-5 – .5

1