Winter
Try out Scholastic's Interactive Weather Maker and learn how the wind chill factor works.

NWS Winter Weather Awareness
Lists information about how to handle winter weather situations.

The Four Seasons
Includes games, coloring pages, crafts, and stationery for each of the four seasons. From PrimaryGames.com

Seasons of the Year
First grade web quest on the seasons of the year.

The Electronic Passport to Seasons
A basic description of seasons with a diagram.

Why Leaves Change Color
From the SUNY College of Environmental Science and Forestry, an article explaining what happens when leaves change colors in the Fall.

Wildlife Garden - Seasons
From the Museum of Natural History, a daily photographic record showing how the Museum's wildlife garden changes over the course of a year.

The Seasons
A description of the seasons, and common misconceptions about what causes them.

New Science: A Change of Season
From NASA, a discussion of solstice and equinox. Includes animations explaining why the seasons happen.