Did you know this? I didn't really think about it before...snow can keep you warm. Now that doesn't even make one bit of sense! I have sat on a snow bank before and frozen my little buns to the point I'm not sure if I could walk again! I do know that snow is white and if it's yellow you are not supposed to even go near it! (I learned this from my mother...) Snow is blinding white and will sunburn your eyes because the reflection from the sun is so strong. Always wear sunglasses if you are going to play in the snow for a while. (My mother always says...). Once I went to Crater Lake in Oregon and looking into the large crater I saw a patch of snow that looked blue!! Did you know if you were to poke a hole in the snow and look down into the hole, you may see a bluish color. In each case, the blue light is because the light travels a long path through the snow or ice. The light has to go through lots of crystals scattering light all over the place. You could think of the ice or snow layer as a filter. After a new snowfall, the snow is made up of a high percentage of air trapped among the layered snow crystals. Since the air can barely move, ( There's the key point! The air can't move and can't vibrate to make heat!), heat transfer is greatly reduced. Fresh, uncompacted snow typically is 90 to 95 percent trapped air. Many animals take advantage of snow's insulating qualities, and burrow into the snow to hibernate through the winter. Does this mean we will be wearing "snow" coats in the future? I hope not...have you ever had a bunch of snow dumped on your head? It's pretty heavy!
2 Comments
Sadie
2/2/2018 03:15:43 pm
YAY!!! I think I am the first comment!!! Good job on the blog Mrs. Taylor!!!
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Errol
2/5/2018 07:47:08 am
I didn't know snow was an insulator!
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Mrs. TaylorI love science! Everything about the world is interesting and never boring. I love to study plants, animals, insects, and people. My favorite subjects are my students who are the most unique organisms on the planet! Categories |