Transcript Air Mass Characteristic

Weather Jeopardy
Air Masses and
Fronts
Weather Maps
and Forecasting
Weather vs.
Climate
What Makes the
Weather
Change?
Pressure and
Weather
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Which type of air mass is A?
What type of weather is associated with this
type of air mass?
What type of weather conditions
are associated with a cold front?
In which direction is the warm front most
likely to move over the next 12 hours?
How do you know?
Why is Zone A colder than Zone B?
Complete the table below by writing in the
air masses that match.
Air Mass
Characteristic
Dry and warm
Moist and cold
Moist and warm
Dry and really cold
Forms over warm land
Forms over warm water
Forms over cold water
Forms over really cold land in upper Canada
What type of weather could Zone B expect
to see over the next 12 hours?
In which direction is the wind coming
from in Pittsburgh? How do you know?
The fronts shown on the weather map are best described
as
(1) boundaries between different air masses
(2) areas experiencing clear skies with light winds
(3) boundaries between different wind belts
(4) areas experiencing extremely warm air temperatures
Once air mass A reaches location B, the weather conditions at
location B will most likely become
(1) warmer and drier
(2) warmer and more humid
WHY?
(3) colder and more humid
(4) colder and drier
Explain why city A has clear sky conditions.
Which terms are both used to describe the weather?
(1) gravity and wind direction
(2) groundwater and erosion
(3) precipitation and runoff
(4) air temperature and wind speed
WHY? Why are the other choices wrong?
Which term refers to the atmospheric conditions that
prevail from season to season and year to year at a
certain location?
(1) climate
(2) weather
(3) equilibrium
(4) ecosystem
How are weather and climate different?
Most scientists agree that an increase in the amount of
greenhouse gases entering Earth’s atmosphere causes
(1) a decrease in sea level
(2) an increase in melting of polar ice caps
(3) a decrease in average surface temperatures
(4) an increase in crustal plate movement
WHY?
What was the probable amount of rainfall, in inches,
for Waterbury, Vermont, for that year?
(1) 35
(3) 37
(2) 36
(4) 43
What type of weather would you expect to have if air
mass 1 moved over your location?
Why is City C cooler than City B?
The arrows in the diagram below show the circulation of air on
a sunny day.
The air circulation shown is caused by
(1)both hot air and cool air sinking
(2)hot air sinking and cool air rising
(3) both hot air and cool air rising
(4) hot air rising and cool air sinking
Which statement would most likely be included in a news report
about an approaching hurricane?
(1) Open the windows to equalize air pressure.
(2) Install snow tires and check the antifreeze in the car radiator.
(3) Evacuate low-lying areas near the coast.
(4) Expect wind speed to decrease for the next several hours.
A satellite image of a hurricane helps weather
forecasters to
(1) warn residents of hazardous weather conditions
(2) explain the effects of global warming on the ocean
currents
(3) predict the times of high tide and low tide
(4) predict the total number of storms to occur in one
year
Which factor has the greatest influence on the direction of air-mass A?
(1) sea breezes
(3) ocean currents
(2) upper air currents
(4) mountain barriers
The movement of an air mass over Earth’s surface causes
(1) earthquake activity
(3) global warming
(2) local weather changes
(4) ecological succession
A sudden change in the weather at a certain location is most likely
caused by
(1) the arrival of an air mass
(3) a high ocean tide
(2) a severe earthquake
(4) an eclipse of the Moon
Earth’s weather is primarily caused by the
(1) drifting of Earth’s crustal plates
(2) uneven heating of Earth’s surface
(3) gravitational attraction of the Moon
(4) changing distance between Earth and Sun
WHY? More direct sunlight = _________?
The diagram below
shows part of the
water cycle.
Some processes in
the water cycle are
represented by
A, B, C, and D.
Complete the chart
below by identifying
the water cycle
process represented
by each letter in the
diagram.
Letter
A
B
C
D
Process
The L on the map refers to low
(1) air temperature
(2) relative humidity
(3) air pressure
(4) amount of cloud coverage
Describe the weather conditions associated with a low.
Explain in your own words
the diagram to the right in
terms of air
pressure.
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Text for Question
Category 5 – 20 points
Why are the lines around a high further apart?
What does that have to do with wind?
What type of weather is associated with
high
pressure?
An instrument for measuring air pressure is a ______.
A. thermometer
B. barometer
C. scale
D. meter stick
Air pressure and wind combine to cause some very dramatic events.
Tornadoes, hurricanes, and thunderstorms are all powered by air pressure and wind.
A hurricane for example, usually forms out over the ocean when a large area of the
ocean water becomes warmer than usual. The heat causes the air pressure there to
drop, and this causes both thunderstorms and strong winds to develop. This is the
beginning of a hurricane. Strong, spiraling winds cause the hurricane to move and
pick up more energy along the way. An area of high pressure called the Bermuda
High often directs hurricanes towards the United States.
Describe two precautions that a newscast might provide residents of a coastal area.
Insert Text for Question
Category 5 – 50 points
The numbered lines on the weather map connect locations
with the same
(1)wind direction
(2)air temperature
(3) wind speed
(4) air pressure