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I want to make a DIY snowgun.

I wonder how is snow chemically made? What is the temperature needed? What is the pressure needed? What is the density of water to throw in the air? What is the humidity of the air needed? Is it easier to make with a chemical reagent? Is there a velocity in which the water would react more efficiently? Do I need to throw the water of a certain temperature and a certain pressure directly to an atmosphere of a different temperature and different pressure?

I'm not a chemist (I'm in 12th grade) but I'm not afraid to get a complex answer that might be hard to understand.

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closed as too broad by aventurin, pentavalentcarbon, NotEvans., Gaurang Tandon, M.A.R. ಠ_ಠ Apr 8 '18 at 15:52

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ Welcome to Chemistry! Take the tour to get familiar with this site. You should probably read about snowflakes first, which would answer most of your questions. $\endgroup$ – pentavalentcarbon Apr 8 '18 at 12:56
  • $\begingroup$ Google 'snow cannon'. Here's a start for you en.wikipedia.org/wiki/Snowmaking $\endgroup$ – Waylander Apr 8 '18 at 13:14

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