You are presented with the question "Incandescents convert electricity into light and what" and the following answer choices: 
- energy
 - house
 - renewable energy
 - home
 - heat energy
 - motion
 - kinetic energy
 - heating liquids

Now knowing that some light bulbs convert electricity into light and heat energy and light Bulbs Incandescent bulbs are available at the front desks, choose the best answer.


 

     heat energy    