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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.
Intended for grade levels:
  • Intermediate (3-5)
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • Text:
    • Ref. material
  • Ocean Sciences:
    • Chemical oceanography
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright and other use information is unknown. Please consult the resource directly for the latest information.
DLESE Catalog ID: BRIDGE-1225
Resource contact / Creator / Publisher:
Publisher: United States Geological Survey (USGS)