This slideshow accompanies a lab-based activity which enables students to explore the concept of buoyancy by constructing and experimenting with Cartesian Divers. This lab uses simple materials including straws, clay, binder clips, and 1 or 2-liter bottles.
This activity can be used independently or as a part of a Watercraft unit. This activity is preceded by a laboratory experiment exploring density. This activity can be followed by an engaging hands-on, problem and project based activity in which students construct a raft to "get off the island"