Note also the importance of asking questions here. Asking questions of yourself. Questions that drive your thinking in the privacy of your own mind. This is not arbitrary “brainstorming” as is done too much in schools. This is a directed, objective question and answer session.
But we have still left a lot unsaid. This whole ice melting thing has to be integrated into the total of a student’s knowledge and values, and has to be motivated. Why is it important? How does it help in life to know this? How is it related to chemical reactions? How is it related to atomic theory? How is it related to cooking? How is it related to the expansion of metals? To the function of an engine?