Name: ______________________________________________ Date:_____ Period: ____   

Popcorn Heat Transfer Lab Conduction, Convection, & Radiation  

Pre-Lab Questions :  1. Draw a model that describes the particle motion in each state of matter. 

Solid  Liquid  Gas 

    

  

   

 2. Is thermal energy classified as potential or kinetic ? Explain your answer. ___________ 

______________________________________________________________________________________________________________________________________________________________________________________________________  

3. Explore: http://www.popcorn.org/Facts-Fun/What-Makes-Popcorn-Pop Why do popcorn kernels pop? ________________________________________________________ ______________________________________________________________________________________________________________________________________________________________________________________________________  

 Lab : 

4. What is conduction ? ___________________________________________________ __________________________________________________________________ __________________________________________________________________ 

 Draw a diagram showing how the kernels pop because of conduction .          

 

 5. What is convection ? ___________________________________________________ 

__________________________________________________________________ __________________________________________________________________ 

 Draw a diagram showing how the kernels pop because of convection .  

 

  

6. What is radiation ? ___________________________________________________ __________________________________________________________________ __________________________________________________________________ 

 Draw a diagram showing how the kernels pop because of radiation .          

 

  Post-Lab Questions :  

7. Which method of popcorn popping transfers heat into the kernels without any direct contact (nothing hot touched the kernels)? Explain. ___________________________ ____________________________________________________________________________________________________________________________________  

8. Which method of popcorn popping requires the kernels to move through the heat source in order to pop? Expain. ________________________________________________ __________________________________________________________________ __________________________________________________________________  

9. Describe another example of an object being heated through conduction. ___________ ____________________________________________________________________________________________________________________________________