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Here are the high school winners in the MESA Day state contest, held Saturday at the University of Arizona, as provided by organizers. MESA stands for Mathematics, Engineering, Science Achievement.

Multitask trebuchet: first, Tucson High; second, Peoria; third, Catalina.

Cargo bottle rocket: first, Flowing Wells students Zach Cornett, Raymond Stoeckman, Aaron Jakobe; second, Amphitheater students Anthony Caire, William Madson, Joseph Cartone; third, Palo Verde students Matthew Majors, Travis Manson, Chris Campbell.

Hit-the-target laser challenge: first, Peoria students Mihai Samartinean, Andrew Castro, Kevin Fallon; second, Amphitheater (names not provided); third, Tucson High.

On-site engineering design: first, Peoria; second, Catalina; third, Santa Rita.

Roller coaster run: first, Sunnyside; second, Peoria; third, Flowing Wells.

Science model: solar water still: first, Catalina students Karla Moreno, Izamar Sanderal, Ximena Milla, Julio Lopez; second, Sunnyside (full names not provided); third, Peoria.

World series of college admissions category: first, Desert View students Griselda Duarte, Alan Valencia, Betzi Castillo; second, Tucson High; third, Nogales.