Rocks: sink or float?
![Rocks: sink or float?](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/4%20rocks.jpg?itok=-vrdnZB1)
Detailed Description
This image shows pumice and other rocks of the same size on the left. On the right, observe what happens when all the rocks are added to a jar of water. The pumice is more buoyant (less dense) and floats. The other rocks are less buoyant (more dense) and sink.
Sources/Usage
Public Domain.