“I was appalled by the number of people affected by lead contamination in water.”

NPR the two-way: Troubled By Flint Water Crisis, 11-Year-Old Girl Invents Lead-Detecting Device.

“Gitanjali Rao, 11, says she was appalled by the drinking water crisis in Flint, Mich. — so she designed a device to test for lead faster. She was named “America’s Top Young Scientist” on Tuesday at the 3M Innovation Center in St. Paul, Minn.”