VIDEO
VIDEO
TIL: Why is the Ocean Salty?
TIL: Why is the Ocean Salty?
How is it that we didn't know why the ocean was salty until 1979? National Geographic Explorer-in-Residence Bob Ballard explains why such a basic question remained a mystery for so long—and where his team finally found the answer.
Grades
5 - 12+
Subjects
Chemistry, Earth Science, Geology, Oceanography
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Web Producer
other
Last Updated
October 19, 2023
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