You are presented with the question "What can change to a solid from a liquid after adding heat energy?" and the following answer choices: 
- Dew
 - ice
 - rock
 - gas
 - NaCl
 - Cars
 - DDT
 - fats

Now knowing that melting means changing from a solid into a liquid by adding heat energy and energy is needed to melt the ice, choose the best answer.


 

  ice       