On Friday, February 24, St. Andrew's 4th-6th graders took over the McRae Science Center for another fun Nights at McRae event. On the agenda was stopping an evil scientist, Dr. Bio Hazard, from using radioactive uranium inappropriately by finding the clues mascot Andy left behind when he hid it. To find the uranium samples, students worked their way through a scavenger hunt of riddles and clues, all while refining lab skills and science minds. In the end, Dr. Bio Hazard managed to escape but luckily the students all gained the trust of Andy and were able to find the radioactive uranium hidden on campus. For pictures from the event, click here.