My physical science class is currently in the middle of a unit on energy. After discussing the different types of energy that exist, I challenged my students to draw an image that contained at least one example of each of the types of energy we had discussed. This led to some great discussions between my students as they tried to find examples of each energy type that would work with the setting of their individual picture.
Here are my students' creations:
I can tell that the marble roller coaster activity we did stuck with students because there were lots of pictures including a roller coaster!