Sea Water Vs. Freshwater

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The earth’s surface is made up of 70 percent water. There are two types of water found on earth: salt water or sea water and fresh water. Sea water is more abundant than fresh water.


Fresh water is clear and transparent. Sea water is somewhat cloudy and has visible particles floating in it.


Water is naturally fresh. Salt water is created because of water movement over the land. The salt becomes part of the water because of eroding rocks due to the water’s moving over them.


Fresh water is pure H2O (two parts hydrogen and one part oxygen). Salt water is H2O with the particles of rock or “salts” floating in it.


Sea water has a higher density than freshwater. Density is the ratio of the water’s mass to its volume. Sea water’s is higher because it has more mass due to the salts. Objects float better in sea water because of its density.


Viscosity is the internal resistance to flow. The salinity of sea water causes it to have a higher viscosity than fresh water.

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