Unit 6 Link
This link to a video shows how easy it is to float in the dead sea. https://www.youtube.com/watch?v=TDEz WjQ pQI.
This website explains how water works. https://science.howstuffworks.com/environmental/earth/geophysics/h2o.htm.
Here is a link showing how Submarines work by using displacement. https://science.howstuffworks.com/transport/engines-equipment/submarine1.htm.
This link talks about why boats that are made out of steals can float. https://science.howstuffworks.com/science-vs-myth/everyday-myths/question254.htm.