At the Eyes on the Bay website, examine differences in salinity across the Chesapeake Bay by first switching to “full-screen map” and then running your cursor over the red square icons and reading the salinity data that appear on the left side of the screen.

a. Describe what happens to salinity as you move from open ocean (the right and lower edges of the map) to the top of the Chesapeake Bay.

b. Describe what happens to salinity as you move from the center of the Chesapeake Bay and up the Potomac River, which starts near the bottom center of the map.