Apparently the question "How does it work?" is a bit too much for some of my students. Here is an excerpt from a research poster:
This is a supercharger for the gt500. What the supercharger does is it gives the car power. Also the supercharger is a source for more power for the car. Then the supercharger also gives 130 more horsepower to the car. How the supercharger works is when you press the gas it gives you more power.
This answer was after a lot of coaching. You can tell that I kept asking "but how does it work?" when the student would tell me he was done. He just didn't want to do a search on the Internet, for some reason.