Fire up your physics class by assigning a instructional activity on heat transfer. They explain in words the differences among conduction, convection, and radiation. They reveal their knowledge of transfer rates, convection currents, and electromagnetic waves. If you can locate the PowerPoint presentation on thermal physics that was also posted by the Nevada Joint Union High School District, you will find that this assignment follows it to a tee. It can be used as a note-taking guide or homework assignment.