Winter

Summary
Describes some of the signs of winter, including changes in light and temperature, plants at rest, bare branches on trees, animals and birds responding to the cold and lack of food, and other differences, and suggests related activities.

Summary
Read about when is it winter in North America, why winter weather is cold, where do animals go in the winter and what do people do in the winter.

Summary
There is more than one way for animals to prepare for winter. Some, such as mice, foxes, and moose, simply tolerate the cold. Of course black bears hibernate, but chipmunks, wood frogs, and garter snakes do too. And then there are the creatures that migrate, including hummingbirds, blue whales, and even earthworms!

Summary
A melting snowman leads her--of course!--to explore climate change and how to reduce her carbon footprint. The helium balloons at her eleventh birthday party beg questions--naturally!--of molecular structure, weights of gases,and neutral buoyancy. An afternoon making paper airplanes brings discoveries in aerodynamics. Tracks in the snow raise questions of how animals survive the winter. And an afternoon of sledding slides right into an investigation of momentum, acceleration, and friction.

Summary
Presents the scientific explanation behind the winter season, a related myth, and step-by-step instructions on how to make eight winter-themed crafts out of various materials.

Summary
Despite their elaborate preparations for the winter, the animals and birds are delighted by a surprise banquet after a big snow. (1949 Winner)

Summary
A biography of a self-taught scientist who photographed thousands of individual snowflakes in order to study their unique formations.

Summary
On a winter's night under a full moon, a father and daughter trek into the woods to see the Great Horned Owl. (1988 Winner)