Transcript Where is Tornado Alley?

AF1 - Drawing a choropleth map
AF3 - describe the distribution of tornadoes
AF4 - explain the formation of a tornado
STARTER: Tornadoes are so good they have
made lots of films about them!
https://www.youtube.
com/watch?v=bKBtA
EwreEo
List the
impacts
of a
tornado:
What is this type of map called? In which state is
the greatest number of males compared to women?
What is the data?
It is a choropleth
map that shows the
number of males
per 100 females.
The biggest
imbalance is in
Alaska with
105-107 men to 100
females
State
Alabama
Arizona
Arkansas
Colorado
Connecticut
Delaware
Florida
Georgia
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Deaths
72
2
55
10
34
2
25
203
2
613
71
92
82
76
49
1
16
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
94
115
72
317
158
2
101
6
5
2
4
23
10
Ohio
Oklahoma
Oregon
Pennsylvania
South Carolina
South Dakota
Tennessee
Texas
Utah
Virginia
Washington
West Virginia
Wisconsin
Wyoming
1)
Create a key, no more than 4
colours, equal range, no white,
similar to
this example –
change the numbers
85
113
3
26
53
8
38
114
1
13
6
100
117
2*
Use this map, ignore Alaska.
Describe the
distribution of
deaths from
tornadoes.
Remember data,
place names,
direction
Finally, draw
around the
states you
think form
Tornado
Alley.
Draw a line around or
shade in the area of
Tornado Alley and
add it to your key.
What is the source of the
warm moist air pictured in
green? Where is the warm dry
air pictured in orange coming
from? The blue?
Why do you think
there are a lot of
deaths in states like
Illinois and
Mississippi despite
being on the edge of
Tornado Alley?
Lack of prediction, preparation and planning
in these areas as they are focused on areas
with there is a high frequency of tornadoes.
Map Skills Test
1. What does DL stand for? _____________
2. Give the 4 figure grid reference for Oregon _ _ _ _
3. Give the 4 figure grid reference for Lake Michigan _ _ _ _
4. Give the 6 figure grid reference for ‘I’ of Iowa _ _ _ _ _ _
5. Give the 6 figure grid reference for Washington D.C. _ _ _ _ _ _
6. Which state is the furthest southeast? ____________
7. Which state is southwest of Montana? ____________
8. Which state is 1000 miles northwest of the centre of Tennessee? ___________
9. What is the area of Colorado? _________square miles
10. What is the shortest, straight line, distance you would travel to get from Mexico
to the centre of Washington D.C.?____________ miles.
Answers – swap books
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Delaware
0022
0522
044238
067232
Florida
Idaho
New York
Roughly 367 x 500 = 183500 square miles
5.5cm/1.5cm x 500miles = 1833 miles
Set a target…
A: 9-10, B: 7-8, C: 5-6, D: 3-4, E: 1-2
Write their grade then the following;
WWW (what went well):
EBI (even better if):
• Using a key
• 4 figure grid
references
• 6 figure grid
references
• Direction
• Scale
http://news.bbc.co.uk/2/hi/53285
24.stm
Annotate your diagram
with the information
from the link (above),
you have 1 minute per
slide to add information
to explain how a tornado
forms.
Aim to add connectives,
such as, because and the
refore to add detail.
Plenary: Describe what you would do and
what you would have already done,
knowing you live in a high risk area?