LONE TREE, Colo. — Outside denver, a talented 12-year-old is getting national attention. It’s not for her music, it’s for Gitanjali Rao’s contribution to science.
“If my mom asked me what do you want for Christmas, I’d be like, lead,” Gitanjali said. 
That’s right, lead, which Gitanjali needed for an invention.
“Imaging living day in and day out drinking contaminated water with dangerous substances like lead. Introducing tethys, the easy to use, fast, accurate, portable and inexpensive device to detect lead in water,” Gitanjali said in her presentation for the Young Scientist Challenge. She won the national competition for her invention.
It was inspired by a real-world problem. “I’ve been following the Flint water crisis for about two years,” Gitanjali said. 
In Flint, Michigan, nearly 100,000 residents drank lead contaminated water for more than a year.
“Lead is mostly harmful to younger children, about my age — giving them growth defects and potententially damaging their brain,” …