You are presented with the question "changing from a liquid into a solid by reducing heat energy what?" and the following answer choices: 
- heats up
 - Evaporation
 - Dehydration
 - warms
 - kinetic energy
 - melts
 - boiling
 - solidifies

Now knowing that freezing means changing from a liquid into a solid by reducing heat energy and solidification , or freezing, occurs when a liquid turns into a solid, choose the best answer.


 

        solidifies 