Chapter 13 Play This Game Live Now Join Live Game as a Player
What is an air mass?
What is an air mass?
A huge body of air that has similar temperature, humidity, and air pressure throughout it.
Scientists classify air masses according to _________ and ____________.
Scientists classify air masses according to _________ and ____________.
temperature and humidity
Polar air masses have HIGH/LOW air pressure.
Polar air masses have HIGH/LOW air pressure.
high
What are the characteristics of a maritime polar air mass?
What are the characteristics of a maritime polar air mass?
cool and moist/humid
Name the four types of fronts.
Name the four types of fronts.
cold front, warm front, stationary front, and occluded front.
What is a storm?
What is a storm?
a violent disturbance in the atmosphere
Where do tornadoes occur most often?
Where do tornadoes occur most often?
The Great Plains of the United States
Thunderstorms and tornadoes can form from what type of cloud?
Thunderstorms and tornadoes can form from what type of cloud?
cumulonimbus clouds
A "dome" of water that sweeps across the coast where the hurricane lands is called a(n) _____________.
A "dome" of water that sweeps across the coast where the hurricane lands is called a(n) _____________.
Storm Surge
When does snow fall?
When does snow fall?
Snow falls when humid air cools below 0 degrees Celsius
True or False: Floods are the most dangerous weather-related events in the United States.
True or False: Floods are the most dangerous weather-related events in the United States.
True
What is a flash flood?
What is a flash flood?
A sudden, violent flood that occurs within a few hours, or even minutes, of a storm.
What are two things that can cause a floah flood?
What are two things that can cause a floah flood?
Rain, Dams breaking, Ice jams breaking free.
Describe the difference between a flood warning and a flood watch.
Describe the difference between a flood warning and a flood watch.
warning: An announcement that floods have already been reported or are about to occur; watch: an announcment describing the area in which flooding is possible.
What are other ways, besides high waters, that floods can cause damage?
What are other ways, besides high waters, that floods can cause damage?
power outages, landslides, polluted drinking water, interruption of emergency services.
True or False: Winds spiral inward towards the center of a cyclone.
True or False: Winds spiral inward towards the center of a cyclone.
true
What normally happens to the strength of a hurricane as it hits land?
What normally happens to the strength of a hurricane as it hits land?
It decreases
Why do hurricanes NOT form in the Northern Atlanic Ocean?
Why do hurricanes NOT form in the Northern Atlanic Ocean?
Because the hurricanes need the energy of warm ocean water to form, and the waters of the North Atlantic are too cool to provide enough energy.
IN the Northern Hemisphere, in which direction do the winds of a cyclone always spin?
IN the Northern Hemisphere, in which direction do the winds of a cyclone always spin?
counterclockwise
A warm-water event that occurs periodically in the Pacific Ocean is called _________
A warm-water event that occurs periodically in the Pacific Ocean is called _________
Scientists who study the causes of weather an try to predict it are called __________.
Scientists who study the causes of weather an try to predict it are called __________.
Meteorologists
Where is the safest place to be during a tornado?
Where is the safest place to be during a tornado?
In the basement of a well-built building
Describe a cold front?
Describe a cold front?
A rapidly moving cold air mass runs into a slowly moving warm air mass.
A sudden energy discharge between parts of acloud or between the cloud and the ground is called __________.
A sudden energy discharge between parts of acloud or between the cloud and the ground is called __________.
Describe an occluded front?
Describe an occluded front?
A warm air mass is caught between two cooler air masses.
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What Would You Like To Risk?
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Go To The Final Question
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