Fact 1: If an object is in the sunlight then that object will absorb solar energy.

Fact 2: Solar energy heats surface.

Given the two facts above, answer the question "What will happen if an object is in the sunlight?" with the following options: 
- Grow old
 - Get dirty
 - photons
 - It expands
 - warmth
 - motion
 - Heat up
 - Cool down


 

       Heat up  