When water is frozen, both white and clear ice is formed, why?

Subject: When water is frozen, both white and clear ice is formed, why?

Date: Sat Mar 13 01:13:35 1999
Posted by Em
Grade level: 10-12 School: No school entered.
City: No city entered. State/Province: No state entered. Country: Australia
Area of science: Chemistry
ID: 921309215.Ch

Message:


When water is frozen one part of the ice-block formed may be 
clear, while another part of it is white. Why is this so, and is 
there anything one can do to reduce the amount of white ice 
formed?

Re: When water is frozen, both white and clear ice is formed, why?

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