In this activity, students make a Cartesian diver to demonstrate the relationship between volume, mass and density. A similar principle is used in Argo scientific floats.
By the end of this activity, students should be able to:
- describe some of the factors that affect what makes an object float or sink
- understand how changing the volume of something, but not its mass, will change its density
- understand how Argo floats rise and sink in the ocean.
Download the Word file for:
- introduction/background notes
- what you need
- what to do
- extension ideas.