Hello I am currently a pre nursing student in WCU starting in Oct. 29 this year. All my transfer credits transferred except my science classes (anatomy, physiology, microbio, and chemistry) because theyre all 8 years old. Has anyone taken a science challenge exam? If so, how hard is the test and is it possible to take all 4 of them by December 14 which is the deadline they gave me to finish all four exams. Thanks!