EARTH SCIENCE NAME:_______________________
CHAPTER 25 DATE:_______________________
PAGES 498-519 PERIOD:_____________________
SECTION 25.1 PGS 499-501
WHAT ARE THE 2 SECTION OBJECTIVES?
1.
________________________________________________________________________________________________________________________________________________________
2.
____________________________________________________________________________
____________________________________________________________________________
3.What is an Air Mass?
______________________________________________________________________________________________________________________________________________________________
Air masses that form over frozen polar regions are
very (4) ___________________ and (5)_____________________. Air masses that form
over tropical oceans are (6)_______________________ and
(7)__________________________.
Name four types of Air Masses
8.____________________________ 10.____________________________
9.____________________________ 11.____________________________
Name the abbreviations for the four Air Masses
12. ___________________________ 14.____________________________
13.___________________________ 15.____________________________
16. An air mass may remain over its source region
for days or weeks. When will an air mass eventually move into other regions?
_________________________________________
Air masses formed over the oceans are called
(17)___________________________. Air masses formed over land are called (18)______________________.
Air masses that are cold are called (19)________________________. Air masses
that are warm are called (20)___________________________.
Of the seven regions air masses come from which five
have an effect on Chicago? (hint look at figure 25-2)
21.__________________________ 22.____________________________
23.__________________________ 24.____________________________
25.__________________________
Answer Questions 2 and 3 of the Chapter 25.1 Review
26. ___________________________________________________________________
27. ___________________________________________________________________
SECTION 25.2 PGS 502-508
WHAT ARE THE 3 SECTION OBJECTIVES
28.___________________________________________________________________________________________________________________________________________________________
29.___________________________________________________________________________________________________________________________________________________________
30.___________________________________________________________________________________________________________________________________________________________
31.When two air masses meet a boundary called a
________________________ forms.
32.Why does a cold air mass usually sink below a
warm air mass?__________________________
_______________________________________________________________________________
Match the correct term with the following questions.
COLD FRONT WARM FRONT STATIONARY FRONT OCCLUDED FRONT
33._______________________ Two air masses move
parallel to one another
34._______________________ Produces a Squall line
35._______________________ When a cold air mass
overtakes a warm air mass
36._______________________ When a warm air mass
overtakes a cold air mass
37._______________________ Produces short lived
violent storms
38._______________________ Produces precipitation
over a large area
39._______________________ A cold air mass
completely overtakes a warm air mass
40._______________________ Large cumulus and
cumulonimbus clouds usually form
41._______________________ Has a gentle slope
showing a distinct pattern of clouds
Draw the symbols used for each front
42.WARM
FRONT 43.COLD
FRONT
44.STATIONARY FRONT 45.OCCLUDED FRONT
The boundary at which the cold polar air meets the
warmer air of the middle latitudes is called a
(46)__________________________
____________________________. A polar front circles the earth between 40
degrees and 60 degrees latitude in each hemisphere.
Refer to pages
503 and 504 as well as figure 25-5 to answer the following questions.
A wave cyclone starts of as a
(47)_____________________________ front(first stage). As a wave develops along
the stationary front two separate fronts are formed, a (48)_______________________
front and a (49)________________________ front(second stage). The fronts begin
to move (50)______________________- _____________________ along a
(51)___________________ pressure system. Eventually the (52) __________________
front catches up and overtakes the (53)__________________________front making a
new (54)___________________________ front (third stage). Within 24 hours of the
occluded front stage the cyclone begins to (55)__________________________
(final stage).
56. Draw what
a cyclone would look like in the occluded front stage!
There are a few differences between a cyclone and an
anticyclone, name 3 of them.
57.____________________________________________________________________
58.____________________________________________________________________
59.____________________________________________________________________
A hurricane is a severe tropical
(60)____________________ with windspeeds starting at
(61)_________________________ km/hr.
What type of pressure system is associated with a
hurricane? (62)_______________________
Hurricanes in the pacific are known as
(63)_______________________________________
Why is it calm and clear within the eye of a
hurricane? (64)_______________________________
______________________________________________________________________________
65. Most deaths during hurricanes are due to
______________________________
66. A storm accompanied by thunder, lightning, and
strong winds is called a ________________________
67. Why do thunderstorms usually occur during the
late afternoon or early evening? ___________
______________________________________________________________________________
What are the three stages in a thunderstorm
development?
68. _________________________
69. _________________________
70. _________________________
71.What types of clouds are associated with a
thunderstorm? _______________________________
72. How high can these clouds get?
___________________________
73.Why does the anvil shape appear at the top of
these huge clouds? (hint: think of what happens to the temperature at the top
of these clouds!) __________________________________________
74.During a thunderstorm, clouds discharge
electricity in the form of _________________________.
75. The released electricity heats the air, causing
it to expand rapidly. The rapid expansion and collapse of the air produces the
loud noise known as __________________________. For lightning to occur, the
clouds must have areas with distinct electrical charges. The upper part of the cloud
usually carries a (76) __________________________ charge, while the lower part
carries mainly a (77)_______________________ charge.
(78)____________________________ occurs as a huge spark that travels between
the two parts of the cloud when the difference in the
(79)___________________________ charges becomes great.
What are three things you should avoid doing during
a thunderstorm?
80. __________________________________________________
81. __________________________________________________
82. __________________________________________________
EXTRA CREDIT
How do you know how far away lightning struck from you?
______________________________________________________________________________________________________________________________________________________________
83. The smallest, most violent, and shortest lived
severe storm is a ____________________________
A (84)___________________________ is a whirling,
funnel shaped (85)__________________________.
A tornado forms when a (86)___________________________________
meets high altitude, horizontal (87)___________________________. These winds
cause the rising air in the thunderstorm to (88)___________________________.
Winds in a tornado can reach a speed of up to
(89)___________________________.
90.Tornadoes over the ocean are called
__________________
_______________________.
SECTION 25.3 PGS 509-511
What are the 2 Section Objectives
91.
___________________________________________________________________________
___________________________________________________________________________
92.
____________________________________________________________________________
____________________________________________________________________________
What are three types of thermometers?
93. ________________________________________
94. ________________________________________
95. ________________________________________
96. What type of instrument measures wind speed?
_____________________________________
97. What type of instrument measures wind direction?
___________________________________
98. The wind is described according to the
_________________________ the wind comes from.
What are two instruments that measure upper
atmosphere conditions?
99. ____________________________________
100. ____________________________________
Answer questions 1,2, and 3 on the sections 25.3
reveiw.
101.
___________________________________________________________________________
102.
___________________________________________________________________________
103. ___________________________________________________________________________
SECTION 25.4 PGS 512-517
FORCASTING
THE WEATHER
WHAT ARE 2 SECTION OBJECTIVES
104.
___________________________________________________________________________
105. __________________________________________________________________________
106. MAKE A STATION MODEL USING THE FOLLOWING
INFORMATION
Temperature 39, Dew Point 31, Winds out of the NE at
33 knots, 60 % of the sky is covered by clouds, there is drizzle present, the
atmospheric pressure has increased 3.2 mb and currently is 1021 and falling.
There are low stratus clouds as well as high cirrus clouds. Visibility is 1/4 a
mile.
Precipitation started falling 2 - 3 hours ago and
there is currently .75 inches on the ground.
107. What are isobars?
____________________________________________________________
______________________________________________________________________________
108.When using isobars, how do you know where there
is higher wind speed than another place?
______________________________________________________________________________
109. Isobars that indicate a rapid change in air
pressure, thus high wind speeds look like?
110. Isobars that indicate a slow change in air
pressure, thus slow wind speeds look like?
Answer the questions on pages 518 and 519. Use the
correct TERM in the spaces provided.
111. ______________________________ 112. __________________________________
113.______________________________ 114. __________________________________
115.______________________________ 116. __________________________________
117.______________________________ 118. __________________________________
119.______________________________ 120.__________________________________
121._____________________________ 122.__________________________________
123._____________________________ 124.__________________________________