Why do u think the vial of water in plain ice didn't freeze, bu the vial of water in salted ice did freeze??
People put salt on ice when they make ice cream. Why do they do that?
Because of the affect that salt is insulating the ice into the vial of water thus making the water freeze
wat do u mean by insulating?
it insulates the water on the outside cold in
I don't understand what insulate means.
This definition from the American Heritage Dictionary will help you understand the meaning of "insulate."
"To prevent the passage of heat, electricity, or sound into or out of, especially by surrounding with a nonconducting material."
wat about da ice cream one??
Check this site about salt and ice cream.
http://science.howstuffworks.com/question58.htm