Fact 1: If a thermal conductor is exposed to a source of heat then that conductor may become hot.

Fact 2: Domestic water is heated by a solar-thermal water heater.

Given the two facts above, answer the question "a thermal conductor can be used to change the what of water" with the following options: 
- kinetic energy
 - evaporation
 - energy
 - temperature
 - Energy.
 - insulation
 - location
 - speed


 

    temperature     