Transcript for Sixth-Grader Peyton Robertson Wins $25,000 for His Innovative Sandbag Design
And finally tonight, the 11-year-old inventor who stunned grownups with a blazing idea. It has to do with those heavy sand bags deployed to protect houses from flooding. This kid thought there has to be a better way so he invented it. Abc's matt gutman and the boy who is america strong. I'm peyton robertson. Reporter: Peyton robertson has the enthusiasm of an infomercial king. Here he is in his audition tape for this year's young scientist contest. With the ingenuity of thomas edison. The 11-year-old from ft. Lauderdale and his family huddled in a closet as hurricane wilma whipped overhead in 2005. Watching as the storm brought flooding damage and death. So peyton, who's been solving math problems since he was three, set off to solve a problem all by himself. You want to start by going to the science room that I set up upstairs? Reporter: Yes. Okay. His invention? A sandals sand bag. So I used salt in my bag. And I used that so that the water inside my bad would be heavier than any approaching water. Do you have any idea what he's saying? No, not really. Reporter: But here's the translations. Regular sandbags are heavy. Peyton's are lighter, making them easier to carry. That's because they're filled with chemicals and salt and only pand when doused with water. And that also means less water gets through the cracks. When you at it to water, it expands. Whoa! Reporter: Like any scientist he knows that field tests are a must. It's the real deal. Until then peyton who won his contest by the way will keep tinkering. He's an 11-year-old inventor and he's america strong. Matt gutman, abc news, ft. Lauderdale.
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