Occurrence of snowfall: Snow below 500 meters
above sea level every year. Snow above 500 meters above sea level every year, however it can snow below this level every few years. Snow only above 500 meters above sea level. Snow only above 2,000 meters above sea level. Without snow.
Snow is a form of ice.
 Snow forms when
water in the
frozen. Snow comes in all different shapes and sizes.
freezing point of water (0°
Fahrenheit), snow melts and becomes liquid
water. Sometimes, the snow will melt very fast and become
water vapor. This is called
sublimation. The opposite, where water vapor becomes snow, is called
Snow is used for some winter
sport activities like
skiing and sledding. Sometimes people make artificial snow so they can ski. People also commonly build things out of snow for fun.
Snow can also be dangerous, as it can lower
visibility and make driving very difficult. When it snows, the snow will melt a little during the daytime and freeze again at night. This makes
ice which can make driving conditions very treacherous. Snow plows are used to remove snow from roads to make driving easier and safer. Also,
salt may be added to the road to help tires grip the road. When salt is mixed with snow, the snow will melt more easily. This is because salt water has a lower
melting point than fresh water (water without salt).
blizzard is a dangerous type of a snowstorm. A blizzard produces strong
winds that keep the snow in the air, thus reducing
visibility. Sometimes it produce
thundersnow, which is snow with
lightning and thunder.