This 1 minute and 26 second video shows the phenomenon of a bowling ball being dropped onto a piece of clay and measuring the increase in temperature of the clay to demonstrate Conservation of Energy. A student drops the bowling ball onto the clay and the video displays the temperature on the screen behind the student since the clay had a temperature probe embedded in it. Recommend showing video without sound (to better prompt student to wonder about phenomenon). The instructor should describe the setup and procedure to the class. Start the video at 1:00 and run it until 1:20, and then pause it. Ask the class what they think will happen to the temperature of the clay. Then restart the video at 1:20 to see if their assessment of the situation was correct.
This could also be used as a guide for instructors if they wanted to have their students later perform this themselves using a temperature probe.