Download Weather and Climate (pp. 72 – 79)

Weather and Climate (pp. 72 – 79)
Section 3.1
Definitions
Fluid
Air mass
Tropical
Polar
Maritime
Weather and Climate (pp. 72 – 79)
Section 3.1
Continental
Front
Occluded
Cyclone
anticyclone
Weather and Climate (pp. 72 – 79)
Section 3.1
Write the name for each type of air mass next to the description.
The air mass can be maritime tropical, continental tropical, maritime polar,
or continental polar
_____________________________
Forms over the warmer oceans
_____________________________
Forms over the icy oceans
_____________________________
Bring hot, humid weather in summer
_____________________________
Bring heavy rain or snow in winter
_____________________________
Cool, humid air
_____________________________
Bring fog, rain and cool temperatures, even in
summer
_____________________________
Bring hot, dry air
_____________________________
Bring bitterly cold weather with very low
humidity
_____________________________
Bring clear, cold, dry air in the winter
Weather and Climate (pp. 72 – 79)
Section 3.1
Where do storms and changeable weather usually form (p. 75)?
Three out of the four types of fronts involve one warm air mass and one
cooler air mass. What kinds of air masses are involved in the last type of
front? What is the name of this kind of front?
All four fronts involve cold and warm air masses. Which has a greater
density – warm air or cold air?
If a warm air mass and a cold air mass meet, which one will end up
underneath the other? Why?
Three of the fronts are named after the motion of the air masses. Explain
how to determine the names.
Weather and Climate (pp. 72 – 79)
Section 3.1
What happens when wet, warm air is cooled?
A cold front moves faster than a warm front. How does this affect the type of
weather produced by each front?
What kinds of weather occurs after a cold front moves through?
What kinds of weather occur after a warm front moves through?
Which type of front stays in place the longest?
Weather and Climate (pp. 72 – 79)
Section 3.1
Draw a diagram that shows how the wind moves in a cyclone. Label the with
“low pressure” or “high pressure” to describe conditions in the center of the
cyclone. Then describe the type of weather a cyclone produces.
Draw a diagram that shows how the wind moves in an anticyclone. Label the
diagram with “low pressure” or “high pressure” to describe conditions in the
center of the anticyclone. Then describe the type of weather an anticyclone
produces.
In the Northern hemisphere, do cyclone winds blow in a clockwise or
counter-clockwise direction? In the Northern hemisphere, do cyclone winds
blow in a clockwise or counter-clockwise direction? Why do the winds spin
in that direction?
Weather and Climate (pp. 80 – 89)
Section 3.2
Storm
Thunderstorm
Lightning
Tornado
Hurricane
Storm surge
Weather and Climate (pp. 80 – 89)
Section 3.2
What kind of clouds produce thunderstorms? What kind of cloud produces
tornadoes?
Thunder is the sound of an explosion. What is exploding? Why is it
exploding?
You see a flash of lightning and start counting. You hear thunder 24 seconds
later. You see a second flash of lightning and count again. This time the it is
only 21 seconds until you hear the thunder.
How far away was the first bolt of lightning?
How far away was the second bolt of lightning?
Which direction is it moving?
What kinds of things should you avoid in a thunderstorm?
All year round, most precipitation begins in the clouds as _____________________ .
Weather and Climate (pp. 80 – 89)
Section 3.2
Tornadoes occur most often in which country?
Mark Tornado Alley on the map. Label the main states affected by tornado
alley (you may use their abbreviations).
Fill in the Blank
A hurricane begins over ____________________________(land or water) as a
__________________________ . If it grows in size and strength it becomes a
_____________________________________. If it grows even larger it becomes a
_______________________________________________ .
Weather and Climate (pp. 92 – 98)
Section 3.3
Definitions
Meteorologist
Isobar
Isotherm
Look at the Math box on page 95. Read the paragraph labeled “Computer
Weather Forecasting” and examine the graphs carefully. Then, answer the
questions. The questions have been typed below.
What two variables are being graphed?
How is air pressure predicted to change according to each model in the top
graph?
Which computer model most closely matches the actual air pressure data?
What weather would you forecast for Monday and Tuesday? Explain.
Weather and Climate (pp. 92 – 98)
Section 3.3
Look at the boxes on page 96. The large box explains a weather map symbol.
Use the information in this box to answer the questions that refer to the
Skills Activity box labeled “interpreting data”
1. What is the temperature at this station?
2. What is the wind speed?
3. Which direction is the wind blowing?
4. What is the air pressure?
5. What percentage of the sky is covered by clouds?
6. What type of precipitation, if any, is falling?
7. Draw a symbol that represents a weather station’s readings. The station
has a wind speed of 57 mph, blowing in from the north – headed south.
The temperature is 38 degrees Celsius and the pressure is 998 millibars.
The clouds cover 40 % of the sky. There is a thunderstorm at that
location.
Weather and Climate (pp. 92 – 98)
Section 3.3
Write the name next to each weather map symbol
960