Fact 1: Heating a liquid can be used to identify that liquid 's boiling point.

Fact 2: Boiling is the conversion of a liquid to a gas.

Given the two facts above, answer the question "What does liquid turn into when it's heated?" with the following options: 
- Ice
 - heat
 - Water
 - H20
 - mL
 - Oil
 - Gas
 - Urea


 

       Gas  