2. It begins on the Winter Solstice and ends on the Vernal Equinox.
3. Winter is the season with the shortest days and the lowest temperatures.
4. Wind chill can cause problems during the winter. Wind chill is the combination of wind and temperature and is based on the rate of heat loss from exposed skin.
5. When it is Winter in the Southern Hemisphere, it is Summer in the Northern Hemisphere. This occurs because the Southern Hemisphere is tilted away from the sun and the Northern Hemisphere faces the sun more directly because of the way the earth is tilting toward the sun.
6. Trees and plants stop growing in the winter.
7. Many animals hibernate or migrate away from the cold weather.
8. In the United States, Christmas, Kwaanza, Hanukkah, New Year's Day, Presidents' Day, Valentine's Day and Ground Hog's Day are all celebrated in the winter.
9. Ice and snow are associated with Winter in many places on the earth.
10. Besides snow, sleet, hail, and freezing rain are associated with winter.