A packet of true inquiry based lessons that engage students to explore the concepts associated with the cartesian diver. Extend the activity to designing and making a submarine. These highly engaging activities will keep your students questioning and finding meaning in what they do. Included are teacher demonstration, beginning activities to understanding the cartesian diver, inquiry based worksheet, homework, answer sheets, grading rubrics, submarine challenge and certificates. It's all there! Engage your students in real meaning now!