Fact 1: Temperature changing can cause phase changes.

Fact 2: Another example of a phase change is the transformation of water from liquid to a gas.

Given the two facts above, answer the question "What can transform water from liquid to a gas?" with the following options: 
- It gets heated up
 - temperature taking
 - evaporation
 - Heat energy
 - checking weather
 - lowered energy cost
 - temperature changes
 - observing nature


 

       temperature changes  