Atmosphere
Layers of the Atmosphere
Weather
Extreme Weather
Air Masses and Fronts
100
The layers of gas that surround Earth are called what?
The Atmosphere
100
Which layer do meteors burn up in?
The Mesosphere
100
If it changes over a few hours or days, is it weather or climate?
Weather
100
The Fujita scales measures destruction and intensity of which extreme weather event?
Tornadoes
100
How many air masses does an occluded front have?
Three
200
The atmosphere is held in place by what force?
Gravity
200
Which layer do we live in?
The Troposphere
200
If it takes hundreds or thousands of years to change, is it weather or climate?
Climate
200
Which weather front is more likely to lead to tornado formation?
Cold Front
200
Which weather front involves a warm air mass pushing over and into a cold air mass?
A Warm Front
300
The Earth's atmosphere is made mostly of what?
Nitrogen
300
Which layer contains the ozone layer?
The Stratosphere
300
What weather tool measures wind speed?
Anemometer
300
What happens to hurricanes as they move over land?
They weaken
300
Which weather front involves a cold air mass and warm air mass meeting and staying still and can have prolonged periods of rain or clouds?
A Stationary Front
400
What does altitude measure?
Height or Elevation
400
Which layer contains the orbiting International Space Station?
The Thermosphere
400
What weather tool measures air pressure?
Barometer
400
The area of the United States that includes Oklahoma, Nebraska, and Kansas and produces the most tornados is known as what?
Tornado Alley
400
The air in this picture is moving from right to left, which front is it? 
Warm Front
500
As altitude increases, what happens to air pressure?
It Decreases
500
Which layer of the atmosphere has the greatest air pressure
The Troposphere
500
Low pressure systems bring what kind of weather
Rain, storms or clouds
500
List 3 things that hurricanes need to grow
Warm air
Warm water
Strong wind
500
What do you call the air mass that is moving from cold ocean water over the United States?
A Maritime Polar Air Mass