Question

What changes occur in liquid on heating and cooling?​

Answer 1

Answer:

When the butter is heated, the molecules begin to move and are able to slide past each other and become a liquid. When the liquid butter is cooled, the molecules slow down and reconnect to become a solid again.

Explanation:

Answer 2

Answer:

When the butter is heated, the molecules begin to move faster and are able to slide past each other and become a liquid. When the liquid butter is cooled, the molecules slow down and come close together again to become a solid.