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October 21, 2017

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Troubled By Flint Water Crisis, 11-Year-Old Girl Invents Lead-Detecting Device

The Colorado seventh-grader was unimpressed by the options her parents had to test water in their home. So she created a sensor-based device using chemically treated carbon nanotubes to do it faster.

(Image credit: Andy King/Discovery Education 3M Young Scientist Challenge)


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