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

Fact 2: Copper is a great thermal conductor.

Given the two facts above, answer the question "What happens when copper is exposed to heat?" with the following options: 
- It gets hot
 - It expands
 - contamination
 - anemia
 - sweating
 - It creates light
 - they bend
 - It cools down


 

 It gets hot        