You are presented with the question "what is increased to cause something to change from a solid into a liquid?" and the following answer choices: 
- Evaporation
 - water vapor
 - hydrogen
 - temperature
 - ice cubes
 - h2o
 - sweating
 - Water expanding

Now knowing that melting means changing from a solid into a liquid by adding heat energy and all temperatures are measures of heat energy, choose the best answer.


 

    temperature     