Students in grades 4-12 that attend school or are home schooled in Mercer County, NJ can participate in the annual Mercer Science and Engineering Fair (MSEF).
Students in grades 4 and 5 compete in the Elementary Division. Students in grades 6-8 compete in the Junior Division and students in grades 9-12 compete in the Senior Division.
Students in the Senior can compete in only one ISEF affiliated fair in the same academic year. They can compete in MSEF and any non-ISEF affiliated fairs in the same academic year.