It will melt to form liquid water. It will melt to form water vapor. It will freeze to form liquid water. It will not change at all.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A large piece of ice is placed on the sidewalk on a warm day. What will happen to the ice?
Possibilities:
- It will melt to form liquid water.
- It will melt to form water vapor.
- It will freeze to form liquid water.
- It will not change at all.

It will melt to form liquid water.