Chiba University on Monday allowed three second-year high school students with high marks in chemistry to skip their senior year and enter college this spring, becoming the first university to do so, officials said.Seiji Kajita, 17, of Fukuoka, Kazutoshi Sato, 16, of Chiba, and another 17-year-old Fukuoka student who declined to be named were chosen out of 11 students who took the school's engineering entrance exam last December, which included an essay on why water has disappeared from Mars."We want to fully develop their exceptional potential in chemistry and train them to become first-class scholars," university President Kosaku Maruyama said. The students are scheduled to receive specialized classes from an early stage, including one-on-one lessons. They will also take a summer course abroad this year to study a foreign language.