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Khan Academy

Khan Academy: The Bicarbonate Buffering System and Titration Curves

For Students 9th - 10th
This is a five-question quiz related to the passage "The Bicarbonate Buffering System and Titration Curves"
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Curated OER

Smithsonian Institution Archives: Florence Barbara Seibert (1897 1991)

For Students 9th - 10th
Biochemist Florence Barbara Seibert (1897-1991) developed the skin test for tuberculosis. After graduating from Goucher College, she worked as a chemist during World War I and then went to Yale University, where she earned a Ph.D. and...
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Curated OER

Jean Dougherty Strother With e.j. Ducayet (Right), r.c. Buyers (Left)

For Students 9th - 10th
Dora Jean Dougherty Strother (b. 1921) (center) was a human factors engineer and test pilot for Bell Helicopter Co. in 1961 when this photograph was taken, and had just broken a helicopter altitude record (at 19,406 feet) in a Bell...