Name ______
Air Masses/High and Low Pressure Review Sheet Worksheet
1. As you move higher into the Earth’s atmosphere, the pressure…
a. decreases.b. increases.
2. What is a high pressure system?
a. A rotating mass of cool, dry air.
b. A rotating mass of moist air.
c. A rotating mass of warm, dry air.
d. A stationary mass of cool, dry air.
3. A “high” is an area where…
a. the atmospheric pressure is greater than that of the surrounding area.
b. the atmospheric pressure is less than that of the surrounding area.
c. the atmospheric pressure is the same as that of the surrounding area.
4. In a “high,” the molecules are packed closer together.
a. Trueb. False
5. The air in a “high” is…
a. more dense so it sinks.b. less dense so it rises.
6. On a weather map, a high pressure system is represented by a…
a. blue “H.”b. red “H.”
7. A high pressure system brings…
a. cold, sunny weather.c. warm, sunny weather.
b. cold, wet weather.d. warm, wet weather.
8. A high pressure system causes the air to…
a. cool off.b. heat up.
9. The temperature of air in a high pressure system…
a. causes water vapor to condense, creating clouds.
b. prevents water vapor from condensing, preventing clouds from forming.
10. A low pressure system means…
a. less compression of the molecules of gas which make up the air.
b. more compression of the molecules of gas which make up the air.
c. no compression of the molecules of gas which make up the air.
11. “Lows” are associated with…
a. high winds, cold air, and atmospheric lifting.
b. high winds, warm air, and atmospheric lifting.
c. light winds, cold air, and atmospheric lifting.
d. light winds, warm air, and atmospheric lifting.
12. There is ______of a heating effect and ______chance of condensation and cloud formation.
a. less, moreb. more, less
13. “Lows” normally produce…
a. clear skies and cold weather.c. clouds and no precipitation.
b. clear skies and warm weather.d. clouds and precipitation.
14. Wind is caused by differences of pressure in the Earth's atmosphere.
a. Trueb. False
15. Air moves from areas of ______pressure to areas of ______pressure.
a. high, lowb. low, high
16. When a high density and low density air mass meet…
a. the high density air mass rises and cools.
b. the high density air mass rises and warms up.
c. the low density air mass rises and cools.
d. the low density air mass rises and warms up.
Use the weather map to answer questions #17-#19.
Key
/ H – High pressure system
L – Low Pressure System
17. There is a ______pressure system over Utah.
a. high b. low
18. Clouds ______form because of the high pressure system.
a. willb. will not
19. If you were planning a picnic, what type weather can you expect?
a. Clear, cold and sunny.c. Cloudy, cold, and rain.
b. Clear, warm and sunny.d. Cloudy, warm, and rain.
Air Masses/High and Low Pressure Review Sheet Worksheet
Key I
1. As you move higher into the Earth’s atmosphere, the pressure…
a. decreases.b. increases.
a. decreases
2. What is a high pressure system?
a. A rotating mass of cool, dry air.
b. A rotating mass of moist air.
c. A rotating mass of warm, dry air.
d. A stationary mass of cool, dry air.
a. A rotating mass of cool, dry air.
3. A “high” is an area where…
a. the atmospheric pressure is greater than that of the surrounding area.
b. the atmospheric pressure is less than that of the surrounding area.
c. the atmospheric pressure is the same as that of the surrounding area.
a. the atmospheric pressure is greater than that of the surrounding area.
4. In a “high,” the molecules are packed closer together.
a. Trueb. False
a. True
5. The air in a “high” is…
a. more dense so it sinks.b. less dense so it rises.
a. more dense so it sinks.
6. On a weather map, a high pressure system is represented by a…
a. blue “H.”b. red “H.”
a. blue “H.”
7. A high pressure system brings…
a. cold, sunny weather.c. warm, sunny weather.
b. cold, wet weather.d. warm, wet weather.
c. warm, sunny weather.
8. A high pressure system causes the air to…
a. cool off.b. heat up.
b. heat up.
9. The temperature of air in a high pressure system…
a. causes water vapor to condense, creating clouds.
b. prevents water vapor from condensing, preventing clouds from forming.
b. prevents water vapor from condensing, preventing clouds from forming.
10. A low pressure system means…
a. less compression of the molecules of gas which make up the air.
b. more compression of the molecules of gas which make up the air.
c. no compression of the molecules of gas which make up the air.
a. less compression of the molecules of gas which make up the air.
11. “Lows” are associated with…
a. high winds, cold air, and atmospheric lifting.
b. high winds, warm air, and atmospheric lifting.
c. light winds, cold air, and atmospheric lifting.
d. light winds, warm air, and atmospheric lifting.
b. high winds, warm air, and atmospheric lifting.
12. There is ______of a heating effect and ______chance of condensation and cloud formation.
a. less, moreb. more, less
a. less, more
13. “Lows” normally produce…
a. clear skies and cold weather.c. clouds and no precipitation.
b. clear skies and warm weather.d. clouds and precipitation.
d. clouds and precipitation.
14. Wind is caused by differences of pressure in the Earth's atmosphere.
a. Trueb. False
a. True
15. Air moves from areas of ______pressure to areas of ______pressure.
a. high, lowb. low, high
a. high, low
16. When a high density and low density air mass meet…
a. the high density air mass rises and cools.
b. the high density air mass rises and warms up.
c. the low density air mass rises and cools.
d. the low density air mass rises and warms up.
c. the low density air mass rises and cools.
Use the weather map to answer questions #17-#19.
Key
/ H – High pressure system
L – Low Pressure System
17. There is a ______pressure system over Utah.
a. high b. low
a. high
18. Clouds ______form because of the high pressure system.
a. willb. will not
b. will not
19. If you were planning a picnic, what type weather can you expect?
a. Clear, cold and sunny.c. Cloudy, cold, and rain.
b. Clear, warm and sunny.d. Cloudy, warm, and rain.
b. Clear, warm, and sunny.
Air Masses/High and Low Pressure Review Sheet Worksheet
Key II
1. a (2 choices)
2. a
3. a (3 choices)
4. a (2 choices)
5. a
6. a (2 choices)
7. c
8. b (2 choices)
9. b (2 choices)
10. a (3 choices)
11. b
12. a (2 choices)
13. d
14. a (2 choices)
15. a (2 choices)
16. c
17. a (2 choices)
18. b (2 choices)
19. b
Air Masses/High and Low Pressure Review Sheet Worksheet
Scoring Guide
19 – 418 – 3.5
17 – 3
16 – 2.5
15 – 2
14 – 1.5
13 – 1
1-12 – .5
1