Help On Health (teeth And Mouth) Project Activity?

I’m currently doing a project for my health unit. My topic is teeth & mouth and I’m researching the diseases, types of teeth, teeth care, the anatomy of the tooth, etc. I’m requested to do a powerpoint just to show pictures to aid my presentation. I’m supposed to talk about the pictures and make note of them when presenting to the class. However, I’m also requested to make the class do an activity that ensures they are all participating at all times. The activity will be based on the powerpoint so that the students show they are actually learning the information.
My partner and I were thinking of making copies of a crossword puzzle. In the end we agreed that a crossword puzzle would be an unoriginal, and boring task to do. So, our last resort is to make a quiz about the information and to test them.
I would appreciate if anyone could provide ideas that would make a unique and fun activity. Thanks. =] Oh, and I’m in the 9th grade, if that helps.