tears of an ocean planet

In this lab we tested the salinity of different water samples and measured the density with a hydrometer, the salinity with a temperature density chart. I discovered that the marine sample was denser than those of the brackish, lake and tap water samples and that the salinity was much higher. The more salt that was in the sample the denser the water. We also discovered that the temperature and salinity in the North Atlantic stayed relatively the same no matter what the depth. The salinity stayed around 34.0-37% salinity. I learned a lot in this activity, and the most important thing that I learned was that waters characteristics can differ within the same body of water, depending on where you take the sample. Also that temperature can effect its salinity.