T/G Layout 1

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air-Share Worksheet

Objectives:

1. Review the location of major lines of latitude.


2. Locate the intertropical convergence zone by observing where and when thunder-
   storms occur in the tropics.

Materials:

(per groups of two)

1. GOES image and two transparencies


2. World map


3. Two colored transparency pens

Procedure:

1. Label one transparency sheet #1 and the other #2.


2. On the transparency sheet labeled #1, use one colored transparency pen to do the
   following:
   a. Draw lines to identify and then label the equator, the Tropic of Cancer, and the
   Tropic of Capricorn. Be sure to move transparency sheet #2 out of the way
   when your marking on sheet #1.
   b. Mark the location of the compass points (N, S, E, W).
   c. Mark your geographical location (home) with an “x.”


3. Answer the following questions:
   a. What latitude receives direct sunlight all year?
   b. What impact will this heating have on the surface air?
   c. What will happen to this air?
   d. Is this air moist or dry? Explain why.
   e. On the satellite image, what cloud patterns do you observe in the area of the
   ITCZ?
   f. Does the position of the ITCZ change over a year? If so, within which latitudes
   is it usually located?


4. Label the ITCZ on transparency sheet #2 using a different color transparency pen.


5. Work with a group that has a different GOES image from yours to answer the
   following questions:
   a. Compare your image and your conclusions. Do you see any similarities?
   Differences?
   b. Suggest reasons for the similarities and/or differences


6. Choose a spokesperson from your group of four to explain your conclusions to the
   class.

OB S E RV I N G T H E I T C Z

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