This lab-based activity 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 may be paired with my simple slideshow on Cartesian Divers, which can be accessed via Powerpoint or Google Slides.
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"