|An Essential Mineral|
This essay with a field journal focus reports on a family vacation to the Dead Sea, where the saltiness of the water made it difficult to keep their feet underwater. The reasons for the salinity level of this sea, along with what scientists do and do not know about why the ocean is so salty is also included in the essay. There is also an overview of the importance of salt to humans and the chemistry of salt. In addition, the author presents the results of her experiment, comparing the evaporation rates of water from the Atlantic Ocean and the Dead Sea. At 1,292 feet (394 meters) below sea level, the Dead Sea is the lowest point on Earth, though it is not the depth, but the sea's saltiness that buoyed the imagination of this seventh-grader from New York.
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DLESE Catalog ID: DLESE-000-000-005-826
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