Meet 2 high schoolers featured in the Super Bowl of science fairs

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High school students from around the globe are changing the world when taking their work to the Intel International Science and Engineering Fair, a high-stakes competition that’s documented in the new National Geographic documentary, “Science Fair.” Serena McCalla, a science research teacher at Jericho High School in New York, and two of her students featured in the documentary, Kendra Zhang and Robbie Barrat, join TODAY to talk about their journeys and projects.