In this experiment I will be testing will look at the saltwater mix in an estuary. I am testing the density of saltwater from five different locations along an estuary. By doing this I am inserting the sample into a a gratuated cylinder and weighing the water then calculating the densitites. I do this by dividing the mass of the water and the volume. Then I graphed the results. My results were different since I did the test twice. In this experiment the control is the sixth sample and from that I can tell how dense the water is. When I did the testing I noticed that the closer the samples were to the ocean the more dense it was. In conclude the experiment is to prove my hypothesis and for me to learn more about saltwater density 's.