You are presented with the question "Changing from liquid to gas by adding heat energy occurs during what?" and the following answer choices: 
- freezing water
 - Dehydration
 - reading books
 - Evaporation
 - prolonged thirst
 - breathing air
 - cooking soup
 - rain or sun shine

Now knowing that boiling means change from a liquid into a gas by adding heat energy and for a smoother flavor, bring soup to a boil, choose the best answer.


 

       cooking soup  