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Warnings from the Ice
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Viewing Ideas
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Before Watching
One hazard scientists face when working in Antarctica is extreme cold. To
simulate cold conditions, fill a bucket halfway with ice water. Record the
water temperature. Have a student put one hand in a large plastic freezer bag
and submerge it in the bucket. Place a thermometer in the bag so that it is
next to, but not in, the hand and record the temperature. How long can the
student keep his or her hand submerged before it becomes uncomfortable? Next,
fill a large freezer bag with about four cups of shortening. Place the
student's bagged hand into the second bag so that the shortening surrounds
the hand. Submerge the hand again. What is the temperature inside the bag that
contains the hand now? How does the shortening protect the hand? What animal
adaptations are similar to shortening? How might humans protect themselves
from the extreme cold of Antarctica?
After Watching
Discuss with students the scientific research being conducted in this program. What were some ways that scientists are trying to measure climate change?
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