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Trent Nelson | The Salt Lake Tribune Stan Lockhart smiles at a press conference where Governor Gary Herbert and Prosperity 2020 Al Hartmann | The Salt Lake Tribune Salt Lake Center for Science Education tenth-grader Elliot Hamilton takes measurement durin Al Hartmann | The Salt Lake Tribune Tenth-grade students at the Salt Lake Center for Science Education do experiments making bi Al Hartmann | The Salt Lake Tribune Salt Lake Center for Science Education tenth-grade students Landis Baxter-Howard and Chante