What are some ways that we know it is winter? What are some ways that people and animals are alike in how they deal with winter? Objective Students will be able to choose appropriate clothing for winter activities. Students will explain what the three clothing layers should be for outdoor winter activities and why each layer is needed. Background Just like the animals in Glacier, people must prepare their bodies to be outside in the winter. Some animals prepare by adding a layer of insulating fat to their bodies. Others grow a thick winter coat to trap their body heat close to their skin to ke Duration: 60 Minutes.