You are presented with the question "What, when heated, turns into liquid water?" and the following answer choices: 
- gasoline
 - oil
 - a solute
 - fire
 - ice cubes
 - a prism
 - mussels
 - Energy.

Now knowing that melting is when solids are heated above their melting point and ice cubes melt in liquid water, choose the best answer.


 

     ice cubes    