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African-American science fair attracts record numbers of students to buck the ...

African-American science fair attracts record numbers of students to buck the ...: High school sophomore Daniel Tekle compared germs on the euro and American dollar; ninth-grader Saron Tedla's achieved neutral buoyancy with a homemade submarine, and 14-year-old Galila Amedie's deciphered the effect of temperature on DNA ...

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