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

Fact 2: Water is also a liquid.

Given the two facts above, answer the question "What can be identified after heating water?" with the following options: 
- Chemical energy
 - organisms
 - frozen water
 - its freezing point
 - Movement of an air mass
 - its boiling point
 - objects that have mass
 - magma's boiling point


 

      its boiling point   