Ever wonder how a polar bear stays warm in Arctic temperatures?
Start studying insulation right now in VN’s Cold Weather Creatures studylist.
A polar bear’s fur is key to its survival, because it is a material that prevents or reduces the passage of heat.
Like a big, fluffy winter jacket, each individual hair provides insulation for the bear against its bitterly cold environment. The only spots without insulation are the bear’s eyes and nose, which it covers with its paws to keep warm:
The insulation-Polar Bear snippet highlights the remarkable fur coat that keeps polar bears from freezing in their Arctic environment. The hollow hairs trap heat next to the bears’ bodies, providing insulation against the cold.
Humans don’t have fur — what kind of insulation do we use to keep ourselves warm?
Can’t wait to get insulation in your vocab word collection?
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