When melting snow-crystals or raindrops fall through very cold air, they freeze to form small particles of ice, called sleet.

VOA: special.2011.01.11

Bob Doughty and Faith Lapidus tell about some of the winning American athletes on and off the ice and snow.

VOA: special.2010.02.26

When melting snow crystals or raindrops fall through very cold air, they freeze to form small particles of ice,called sleet.

VOA: special.2010.01.05

The scientists work for the National Snow and Ice Data Center at the University of Colorado in Boulder.

VOA: special.2009.10.27

Signs of climate change include an increase in rain when there used to be only snow, new plant life,and melting ice sheets.

VOA: special.2009.06.03

The scientists work for the American space agency and the National Snow and Ice Data Center in Boulder,Colorado.

VOA: special.2009.05.05

The blue light is the product of a long travel path through the snow or ice.

VOA: special.2010.01.05

Pure white snow and ice covered the Earth for as far as he could see.

VOA: special.2010.05.01

Many people die in traffic accidents on roads that are covered with snow or ice.

VOA: special.2010.01.05

Rain,snow,ice,wind, and plant roots rubbed away at the top of the new canyon.

VOA: special.2009.10.07

Drivers must use special care because of ice and snow on the roads.

VOA: special.2009.01.07

Walter Meier is a scientist with the National Snow and Ice Data Center.

VOA: special.2009.05.05

They could see the snow-covered mountains and huge amounts of blue ice.

VOA: special.2009.12.23

It contains many groups of tiny ice particles called snow crystals.

VOA: special.2010.01.05

In simple terms, think of snow or ice as a filter.

VOA: special.2010.01.05

At a place where the snow seemed very solid,the ice broke.

VOA: special.2010.05.01

Sometimes,snow or ice may appear to be blue.

VOA: special.2010.01.05

Generally,the color of snow and ice appears white.

VOA: special.2010.01.05

He began to walk on the snow-covered ice.

VOA: special.2010.05.01

Columnar snow crystals look like sticks of ice.

VOA: special.2010.01.05

But the snow does melt. Ice cold water travels down the mountains and forms several rivers -- the Gila River,the Green River, the Little Colorado,the San Juan, the Virgin and the Gunnison Rivers.

VOA: special.2010.10.27

A week of snow and ice also temporarily shuttered Dublin airport and led to cancellations of planes, trains and sporting events in London and elsewhere.

VOA: standard.2010.01.10

"SnowCrystals.com is a website that is about snowflakes and snow crystals and generally ice phenomena,"

VOA: standard.2009.12.19

Ice.Snow.Flights canceled.

VOA: standard.2009.12.25