Physical Geography
CGF3M with David Spencer

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http://education.davidspencer.ca/geography/physical/tornado
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Unit # 6

Topic: Tornadoes


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Refer to your textbook Chasmer,Ron. Earth Matters: Studies in Physical Geography. Oxford University Press, Don Mills, 2001 ISBN: 0-19-541555-8

Answer the following questions in sentence form in your physical geography notebook. Make sure that you include the important part of the question in your answer.

Video
1. Make jot notes on the video about tornadoes shown in class. Hand in to be marked. (C= ___10 marks)

Thinking = ____/40 marks

Textbook Reading
2. (page 275) Describe the characteristics of tornadoes and include the following: winds, rains, location, direction,damage caused, location and season when formed.

3. (page 276) What is the relationship between wind shear and a tornado?

4. (page 276) Describe the speed of a tornado.

5. (page 276) Why are tornadoes difficult to track?

6. (page 276) What are severe weather watchers?

7. (page 276) How does an observer know that a tornado is coming?

How Tornadoes are Formed

8. (page 276) On a piece of blank paper, draw and label Figure 16.17 "How Tornadoes are Formed."

9. (page 276) List the names of technology used to track tornadoes today.

10. (page 276) What is the role of the government's Atmospheric Environment Service?

11. (page 276) Describe how a tornado moves along its path.

12. (page 277) Describe the conditions needed for the formation of a funnel cloud.

13. (page 277) What causes the swirling action?

The Fujita Tornado Scale

14. (page 445) What is the Fujita Scale?

15. (page 277) Draw and label Figure 16.18 "The Fujita Tornado Scale."

Tornado Frequency

16. (page 277) Where are the most prone tornado areas in the United States?

17. (page 280)
a) Where are tornadoes sighted in western Canada?
b) What causes their formation?
c) Where are tornadoes sighted in Ontario?

18. (page 279) Examine Figure 16.21. In your notebook, create a chart and list the tornado frequencies for the top four Canadian Provinces and the top four American States.

Tornado Frequency per 10 000 km2

Top Four Provinces

Top Four States

1.

2.

3.

4.

1.

2.

3.

4.

19. On the map of North America provided, label and shade the Canadian Provinces and American States indicated in the chart you have created above.

Examples of Tornadoes

Log onto the Internet here:
http://education.davidspencer.ca/geography/physical/tornado/

 

20. Watch the online video about the CBC Digital Archives: What causes a tornado? Make jot notes about the details and copy down all the "Did you know?" section of the video clip.

21. Watch the online video about the CBC Digital Archives: 1979 Woodstock tornado Make jot notes about the details and "Did you know?" section of the video clip.

22. Watch the online video about the CBC Digital Archives:1985 Barrie tornado Make jot notes about the details and "Did you know?" section of the video clip.

23. Write down five (5) points about the 1985 Barrie Tornado from this Wikipedia.org entry.

24. Watch the online video about the CBC Digital Archives:Storm Chasers:Flirting with Disaster Make jot notes about the details and "Did you know?" section of the video clip.

25. Listen to the online radio and video about the CBC Digital Archives:Why can't we predict tornadoes? Make jot notes about the details and "Did you know?" section of the video clip.

 

 

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This physical geography lesson is copyrighted © 2003-2005 by David M.R.D. Spencer