Salt water, fresh water and bouyancy

Here's the video from class today if you want to review it.We watched the first 5 minutes or so on bouyancy.










Salt water vs fresh water and eggs!

How can you get an egg to be suspended in the middle of the water?

Using the information that you have learned in class, can you explain how a life preserver works?



Check this site out for some interesting extras! Or find out more about the Dead Sea.