| Using a marking pen, draw
the points on a basketball or a beachball that
represent the North Pole, the South Pole, San Francisco,
and Cairo.
Locate Greenwich, England and draw
a line from the North Pole to the South Pole through Greenwich.
To represent each time zone, draw more lines from the
North Pole to the South Pole at
intervals of 15°, until you reach Greenwich
again.
Count the number of time zones
between San Francisco and Cairo. |
|
Look in a telephone directory
for a chart of time zones. Use the chart to determine
what the current time is in each time zone
of the United States. |
