High-school senior invents life-saving water filter

A high-school senior has built a simple water filter using a common tree seed that can effectively remove bacteria such as E. coli and other pollutants. Distributing the easy-to-follow instructions on how to build the filter to developing countries could potentially save lives, she said.

“For people who are currently drinking contaminated water and don’t have access to another (filtration) method, I think this is really a step in the right direction,” Meghan Shea, an 18-year-old student at Unionville High School from West Chester, Penn., told NBC News.