Backyard Ocean

Salt can be very therapeutic, but a trip to the beach is usually quite expensive.

According to WorldBook Encyclopedia, the ratio of salt to water in the ocean averages about 35 to 965, which is about 1:28.

The salinity of Salt Lake is about 7 times that of the ocean, which would make the salt to water ratio about 1:4. The salinity of the Dead Sea is about 9 times the salinity of the ocean, which would make that ratio about 1:3.

That is a lot of salt to drain from a bathtub every day.

To know how much salt to use, it helps to know how many gallons are in a square foot and knowing the specific gravity (the ratio of the density to the density of water) of salt, also known as sodium chloride.

I wonder what grows in the Dead Sea that brine shrimp eat?

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