Fact 1: The sun causes water to evaporate more quickly by adding heat.

Fact 2: Evaporation is the change of liquid water to a vapor.

Given the two facts above, answer the question "What does water turn into when heat is added?" with the following options: 
- Rain
 - energy
 - potash
 - h2o
 - Vapor
 - an ion
 - Ice
 - Energy.


 

     Vapor    