The Adventures of Bear did a fatty experiment to understand how it is that polar bears can survive in such extreme cold.
Whimsical Ways created a sorting and graphing activity using animal that like and dislike the snow.
2 Teaching Mommies put together an activity sheet for making obsevations about snow.
Fun4Kids has an amazing post all about Animals in the Winter. There is a list of great books included, as well as rhymes and finger plays. You will also find a collage activity demonstrating animals in the winter and a super cute cardboard box bear cave. The textured polar bear craft is so fun too!