Why does salt melt ice in the winter but freezes snow(slush) in the summer?

Subject: Why does salt melt ice in the winter but freezes snow(slush) in the summer?

Date: Sun Oct 25 16:29:16 1998
Posted by Colleen
Grade level: 10-12
School: National Sport School
City: Calgary State/Province: Alberta
Country: Canada
Area of science: Chemistry
ID: 909354556.Ch

Message:


To ski in the summer salt is thrown on the hill so the snow stays 
harder longer.

Re: Why does salt melt ice in the winter but freezes snow(slush) in the summer?

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