|What keeps whales and walruses warm in bone-chilling water? One thing is the thick
layer of fat under their skin, called blubber. Blubber acts as insulation between the animal's inner organs and the chilly ocean.|
that live in extremely cold environments usually have a thicker layer of blubber than those that swim in warmer places. An animal's behavior can also affect the thickness
of its blubber. Whales that swim slowly tend to have a thicker layer of blubber than faster-swimming whales. Why do you think this is? (HINT: Think of how you feel when
you're running in cold weather compared to when you're standing still in it.)
Overview: In this experiment, you'll create two gloves one that contains a layer of
shortening (blubber) inside, and one that doesn't. By putting both glove-covered hands in a bucket of freezing c-c-c-cold water, you'll find out if the blubber-covered
hand feels warmer than the hand without the fat layer.