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A snowflake begins to form when an extrem

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by

J Kostenbader

on 17 March 2016

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Transcript of A snowflake begins to form when an extrem

The Power Of Snowflakes
How Snowflakes Form?
The Structure of a Snowflake!
1 snowflake is made up of 180 molecules. It takes about 15-60 minutes to grow a large snowflake. The molecules of water that form each tiny ice crystal naturally arrange themselves into a hexagonal (six sided) structure. The result will be a snowflake with six sides or six arms. Ice crystals are "minerals" because they are naturally occurring solids with a definite chemical composition and an ordered internal structure


How do Snowflakes Look?
Snowflakes come in an all different shapes .All snowflakes have 6 sides. There are about 6 different types of snowflakes. Every snowflake has a different size.
Sleet!
A snowflake begins to form when an extremely cold-water droplet freezes onto a pollen or dust particle in the sky. This creates an ice crystal. As the ice crystal falls to the ground, water vapor freezes onto the primary crystal, building new cystals – the six arms of the snowflake.
If the snowflakes pass through a layer of warm air that is thick enough to melt them completely, then land on a cold Earth surface, the result could be freezing rain.


By:Samantha Abdelsayed
Will They Reach the Ground as Snow?


If the snowflakes pass through a thin warm layer of air they could experience partial melting. When they exit the warm air they will refreeze on the way down in the form of a tiny ice pellet. This is how sleet forms.
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