Layers of the Atmosphere
Winds
Fronts and masses
Pressure
Predicting Weather
100
Which answer best describes the gasses that make up Earth’s Atmosphere?
a. 78% Oxygen with about 21% Nitrogen
b. 78% Nitrogen with about 21% Oxygen
c. Mostly Carbon Dioxide with about 21% Oxygen
d. Mostly Nitrogen with about 21% Carbon Dioxide
b. 78% Nitrogen with about 21% Oxygen
100
What causes winds?
Pressure differences because of the uneven heating of Earth.
100
Cold fronts form when cold air moves in and forces warm air to rise up quickly. Which type of weather is most likely to occur along a cold front?
Heavy rain with possible thunderstorms and cooler temperatures.
100
Air pressure has been rising all day. What weather condition will most likely occur?
Clear, sunny skies
100
What's the difference between weather and climate?
Weather is the short-term, day-to-day conditions. Climate is the long-term weather conditions averaged together over 30+ years.
200
List the layers of the atmosphere in order from the ground to space.
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
200
Which heats up faster during the day: land or water?
land
200
What is the name for this system? :max_bytes(150000):strip_icc()/Stationary_front_symbol2222-748aa6ffd6744d629a468adc635dc98c.jpg)
Stationary front
200
Juan noticed that clear, sunny skies suddenly became cloudy and stormy. Which most likely happened when the weather changed in this way?
Pressure is dropping or decreasing.
200
What do you predict will form at the boundary of two air masses?
A front
300
As you increase in altitude, what happens to air pressure?
It decreases!
300
What kind of breeze is happening at night when cold air over the land sinks and heads towards the sea?
Land breeze
300
A large body of air with similar temperature and moisture content is a(n)
Air mass
300
What causes differences in air pressure around the Earth?
Hint: think about the equator and poles.
Warm air rising at the equator and sinking at the poles.
300
I see thin, wispy, high altitude clouds. What kind of cloud is it and what weather do I expect?
Cirrus with sunny, good weather.
400
The troposphere gets colder as you go up in altitude but the stratosphere gets hotter. Why?
Stratosphere contains the ozone layer which absorbs UV radiation.
400
Which type of HEAT TRANSFER (conduction, radiation, or convection) best explains the existence of local winds.
CONVECTION. Warm air rises and cold air replaces it.
400
An air mass forms over the Pacific Ocean near the equator. When it begins to move and travel eastward across the United States, which characteristics can be expected?
warm and wet
400
As you climb a mountain, what happens to the air around you?
Becomes less dense, spreads farther apart, air pressure decreases.
400
A warm front just passed over Chicago. What kind of weather did they just experience?
Light rain with warmer temps to follow.
500
This layer of the atm. is where you live and weather occurs.
Troposphere.
500
How does the jet stream influence weather?
A. The Jet Stream produces the rotation of the Earth’s winds.
B. The Jet Stream helps steer air masses, fronts, and weather systems across the country.
C. The Jet Stream creates permanent high-pressure systems over the Midwest.
D. The Jet Stream blocks warm ocean currents from moving north.
B. The Jet Stream helps steer air masses, fronts, and weather systems across the country.
500
How is an mT (maritime tropical) air mass different from an mP (maritime polar) air mass?
mT is warm, mP is cold
500
What is air pressure?
The force of air pushing down on you due to gravity.
500
There is a stationary front over Houston, TX. What kind of weather are they experiencing?
Cloud covered skies and steady rain for days