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  Earth Science
  Life Science
  Physical Science

Hands-on Activity

Cartesian Diver

Fun Forces
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.
Topic: Density and Buoyancy
Real World Science Topics:
  • The floating and sinking of fish
  • Buoyancy control devices used by divers
  • Submarines
  • 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 complicated.



Use these quick refreshers to prep for your next class.