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Elementary students participate in science competition

  • key students science
    Photo: Marvin Singer

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Francis Scott Key School 3rd graders (from left) Jennifer Manno, Davyna Chhea, and Avianna Kang display a prototype of their Cavity Prevention Detector, a toothbrush that detects and prevents cavities using tiny light sensors on the bristles and relaying information to a computer chip inside the brush. The three 9-year-olds made up one of four teams from their school and 4,800 teams around the nation and Canada who designed innovative technologies as part of the 2012 Toshiba/NSTA ExploraVision Science Competition. The girls received regional honors for their device. Organized by the National Science Teachers Association, ExploraVision calls itself the world

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