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 Take a look at how the color of materials that cover the Earth like snow, soil, and water affect the amounts of sunlight they reflect and absorb. |
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Are you in a place where snow falls in winter? If so, try catching snowflakes. Then take a close look. Can you find two snowflakes that look alike? |
There's always more to learn about winter weather. Learn about winter weather research projects at the National Center for Atmospheric Research.
 Hoping for a snow day? Consider the meteorological circumstances that would be needed for you to get your wish! |
 High winds can send snow flying through the air, reducing visibility and causing power outages. That's just some of what you can expect from a blizzard. |
 When meteorologists forecast a winter storm one of the important predictions they make is the type, or types, of precipitation that are likely to fall. Will freezing rain cause an ice storm? Will ice pellets called sleet leave the ground covered in slush? Will it rain or snow? |
 Some snowflakes are made of a single ice crystal while other, more elaborate, snowflakes are made of as many as 200 ice crystals fused together. |
K-12 students and Spark staff share what they think of winter weather soon after the first snowstorm of the season in Boulder, Colorado. And their perspectives are as different as snowflakes. Watch and consider: what do you think of winter?
Artists rarely use white to depict snow in paintings. There's a scientific reason snow is white, but it can look blue or purple or even pink depending on how sunlight hits. Visit the snow art gallery and take a look at the colors of snow.