Snow is just like rain and is very common in life. However, people are more interested in snow than rain because it is very beautiful and beautiful.
Whenever it snows, snowflakes fall from the sky. White snowflakes fall to the place and slowly accumulate. So, how much does a piece of snow weigh?Let's take a look.
How much a piece of snow weighs
The weight of a snowflake in the snow is 02 to 05 grams. Snowflakes are very light, weighing only 1 gram from 5,000 to 10,000 snowflakes. But when a small amount adds up, snowflakes can have deadly crushing power. Generally speaking, on the top of a 100-square-meter building, the weight of 20 cm of snow is 1-2 tons, which is equivalent to the weight of an ordinary car, especially the snow in the south will be about 30% heavier than the dry snow in the north due to its high water content. Normally, snow is looser in the north, and 1 mm of snow can accumulate 8-10 mm of snow. A 100-square-meter roof with snow above its knees (40 cm) can withstand more than 3-5 tons of weight, which is equivalent to more than 40 people standing around 100 kg. Why are snowflakes whiteSnowflakes are mainly composed of some small water droplets, and the surface is a water film, and the small water droplets are like some small prisms;When light hits water droplets, it is reflected and refracted on their surface. When light is refracted into a drop of water, it hits the surface of the surrounding droplet, and is reflected and refracted again. 
The snowflake white final light is refracted and reflected many times before being reflected from different directions. And because the surface of the water droplets has almost equal opportunities to reflect light of various colors, it is not a selective reflection, so the waves appear white in the sun. Because of the complex structure of the ice crystals that make up the snow flakes, there are many reflective surfaces that allow light to be reflected and refracted sufficiently, resulting in a white color of the snowflakes. When the temperature is low and the climate is humid, it is easy to produce snowfall. This is because the ground temperature is generally below freezing, and the temperature in the clouds at high altitude is even lower. At this time, the water vapor originally in the cloud will directly condense into Xiaoice crystals and small snowflakes in the low temperature environment. When the air is not strong enough to support them, these condensations fall from the clouds to the ground and collide with each other in the air under the action of the wind, eventually forming flocculent snowflakes. While the surface of one crystal appears transparent because of its weak reflection, the reflection of multiple crystals can make the snowflakes almost become "mirrors". In this way, each side of the snowflake has to reflect a part of the light back, and these messy planes will reflect all the light, so the snowflakes we see will also become white.