Fact 1: Freezing means changing from a liquid into a solid by reducing heat energy.

Fact 2: Solidification , or freezing, occurs when a liquid turns into a solid.

Given the two facts above, answer the question "changing from a liquid into a solid by reducing heat energy what?" with the following options: 
- heats up
 - Evaporation
 - Dehydration
 - warms
 - kinetic energy
 - melts
 - boiling
 - solidifies


 

        solidifies 