Air Masses Fronts
Weather v. Climate
Wind
Seasons
Global Warming
200
What is a front?
the boundary between two air masses
200
Which one can change quickly?
Weather
200
What is created by a difference in air pressure?
Wind
200
The northern hemisphere is experiencing
Summer
200
Is global warming caused by natural or human factors?
Human!
400
How does a cold front form?
When a cold air mass pushes under a warm air mass, forcing the warm air mass to rise.
400
What is the condition of Earth’s atmosphere at a certain time and place?
Weather
400
What causes difference of air pressure around earth?
warm air rises, cold air sinks
400
The path of the earth around the sun
Orbit
400
The gas that is primarily responsibly for the increase in the greenhouse effect
Carbon Dioxide
600
Are air masses that form over land wet or dry?
dry
600
What are the two characteristics that determine climate?
Temperature and Precipitation
600
Where do areas of high pressure go?
to areas of low pressure.
600
The spinning motion of the earth
Rotation
600
The ability of the earth's atmosphere to keep in heat
The Greenhouse Effect
800
What kind of weather is associated with a cold front?
Thunderstorms
800
How can climate change over time?
Many possible answers:
Changing ocean levels
Changing atmosphere
Changing temperatures globally (changing wind patterns)
800
What happens when air is warmed or heated by the sun?
It rises
800
The north pole is experiencing what phenomena?
Polar Day (or 24-hour sunlight/daylight)
800
The primary cause of global warming
burning fossil fuels
1000
Along a front, which air is forced upwards?
Warmer, less dense air
1000
What is the amount of water vapor in the air?
Humidity
1000
What causes a low pressure system?
warm air rises and condenses as it cools
1000
The approximate tilt of the Earth's orbit
23.5 degrees
1000
One change in the ocean as a result of global warming
ocean acidification or rising water levels