In an experiment test the insulating properties of down feathers. This lesson is part of a series. Select this text to learn more about the series and how to extend its usefulness.
Feathers are unique to birds.
They serve several different functions. Vaned feathers cover the bodies, wings, and tails of birds. They are used in flight and camouflage. Down feathers are the small fluffy feathers right next to the body. They keep birds both warm and dry.