A turning, violent wind that crosses land in a thin path is a __________.
tornado
100
In general, how does weather move across the US?
from west to east
100
Which of the following is not a factor that describes weather?
A. elevation
B. temperature
C. sky conditions
D. precipitation
A. elevation
100
A measure of the weight of air over a location is known as __________.
barometric pressure
100
The conditions of the atmosphere at a location are known as _____________.
the weather
200
A cold front is usually followed by _____________.
a high pressure system
200
The sun provides __________.
A. heat, which warms the Earth
B. visible light
C. energy plants use for food
D. all of these
D. all of these
200
The sun is not responsible for which weather factor?
A. wind
B. temperature
C. barometric pressure
D. precipitation
D. precipitation
200
The conditions of the atmosphere at a location are known as ____________.
weather
200
Tiny water droplets formed on dust particles in the atmosphere are known as _______________.
C. clouds
300
Which is not a type of precipitation?
A. snow
B. rain
C. fog
D. hail
C. fog
300
What is the temperature at which air is saturated and condensation forms?
dew point
300
At a low pressure system, what is happening to air?
A. air warms and rises
B. air cools and sinks
C. air dries out
D. air is compressed
A. air warms and rises
300
What type of clouds are found below 6,000 ft and are considered "low" clouds?
stratus clouds
300
What is a large, severe storm over salt water that looses power over land?
hurricane
400
What type of cloud is associated with lightning and thunderstorms?
cumulonimbus
400
Temperature in F is ___________.
A. a measurable weather factor
B. a weather factor described using descriptive language
C. how warm or cold the air is
D. both A and C
D. both A and C
400
Wind is created because ___________.
Earth is heated unevenly
400
Which weather factor is described by its speed and direction?
wind
400
What type of front develops between non-moving air masses?
a stationary front
500
A cold front is __________.
A. fast moving
B. slow moving
C. associated with storm formation
D. both A and C
D. both A and C
500
What is an air mass?
a mass of air with the same temperature and moisture
500
What is a weather front?
a boundary between different air masses
500
What are the four different types of precipitation?