@CNN: Meet the 11-year-old who created a cheap device to test drinking water for lead, and won a $25,000 science prize https://t.co/mHC5NRN2ES https://t.co/x5NWF4yi8o
Meet the 11-year-old who created a cheap device to test drinking water for lead, and won a $25,000 science prize https://t.co/mHC5NRN2ES http://pic.twitter.com/x5NWF4yi8o
— CNN (@CNN) December 3, 2017