|Why Is the Ocean Salty|
Well written and easy-to-understand primer with definition and measurements of salinity. Explains the origin of the ocean, sources of salts and processes affecting its chemical composition, including the hydrologic cycle. Introduces the complexity of salinity, many constituents of seawater, and variability of ocean salinity worldwide. Discusses the compounds that marine plants and animals extract from or add to ocean water. Appropriate for grades 6 and up.
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DLESE Catalog ID: BRIDGE-1225
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