Suppose the air pressure in your area suddenly increased. What does this mean?
The weather will change.
100
The four conditions that produce weather changes are
What is temperature, wind, moisture, and air pressure
200
Amount of water vapor in the air
What is humidity
200
Type of cloud that forms in wide sheets
What is stratus
200
The term used when a boundary between two air masses does not move
What is stationary front
200
What kind of weather can you expect when the air pressure in your air increases?
What is drier air and cooler temperatures
200
Wind is caused by the uneven heating of __________?
What is the earth's surface
300
The condition of air at a given time and place is called
What is weather
300
Kind of clouds that are puffy and separate
What is cumulus
300
When cold air pushes into a region where there is a mass of warm air, the cold air pushes under the lighter, warm air. The warm air is forced up.
What is cold front
300
Clouds form when ______________.
a. the humidity is low
b. cold, dry air warms
c. warm, moist air cools
d. all of the above
What is c
300
True or False. Fog is a type of cloud.
What is true
400
A Blinding snowstorm with strong winds
What is a blizzard
400
Explain the process by which clouds form
In order for a cloud to form, we need warm moist air. When cold air moves in, the warm air will be pushed up into the atmosphere. As the warm air rises, it cools and the molecules in the air move closer together. This causes the water molecules to be "squeezed out" of the air.
400
When a warm air mass pushes into a cold air mass. The cold air mass is pushed back.
What is warm front
400
A _______ may extend to the ground from a cumulonimbus cloud.
A. Blizzard
B. Hurricane
C. Front
D. Tornado
What is D. Tornado
400
Low pressure areas usually have _______________.
a. clear skies
b. cold air
c. cloudy skies
d. dry air
What is c. cloudy skies
500
A large body of air with the same temperature and amount of moisture
What is air mass
500
A thin wispy cloud
What is cirrus
500
The weather in your area last week was cool and rainy. Then the weather turned clear and warm. This lasted several days. Then the weather became cool and rainy again. What caused these changes? Use the words warm air mass, cold air mass, and front in your answer.
These changes occurred because a warm front passed through the area. A moving mass of warm air overtook a cold air mass ahead of it. Then the warm air was replaced by cooler air. The cold front brought heavy rain because the air moves quickly and rises rapidly.
500
Which of the following conditions occur along a cold front?
tornado, drizzle of rain, cumulonimbus clouds, blizzard, nimbostratus clouds, thunderstorm
What are thunderstorms, blizzard, cumulonimbus clouds, tornadoes
500
Which of the following occurs along a warm front?
a. light rainfall
b. cumulonimbus clouds
c. heavy rain
d. strong winds