In this activity, students will build a Cartesian diver and discover how compression and changes in density
cause the diver to mysteriously move up and down.
Density and Buoyancy
Real World Science Topics:
- The floating and sinking of fish
- Buoyancy control devices used by divers
- Life jackets
Students will explore factors that affect buoyancy by constructing and experimenting with a Cartesian diver.
Activity Difficulty Rating: 2
Each hands-on science activity has been ranked based on
difficulty of set up and how difficult they are to perform. The rating
scale is from 1 to 5, with 1 being the easiest and 5 being the most
Use these quick refreshers to prep for your next class.