Fact 1: Aflashlight converts chemical energy into light energy.

Fact 2: Light energy can become heat energy and heat energy can become light energy.

Given the two facts above, answer the question "What can become heat energy?" with the following options: 
- objects that have mass
 - rain or sun shine
 - Chemical energy
 - hydrogen and oxygen
 - an engine
 - static electricity
 - centrifugal force
 - g forces


 

   Chemical energy      