Question

why does the milk overflows when heated whereas the oil and water doesn't​

Answer 1

Answer:

due to the formation of bubbles which doesn't form in oil as much large as milk

Answer 2

When we boil milk, fat, sugar, proteins, and minerals get separated. As these are lighter than milk, they collect on the surface to form the cream. So as more water evaporates, more vapor and pressure builds up in the boiling milk. Finally, the milk pushes the creamy layer out so that the air can escape.

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