A student asked me this today. I understand that salt doesn’t actually melt ice, but lowers its melting temp, but how do I explain this to a child?
In: 3
Ice doesn’t transfer heat well, and air doesn’t transfer heat well, but water transfers heat much better than the other two. By adding salt to ice, you lower the melting point so you get colder liquid water, which freezes your ice cream faster.
Latest Answers