About MCSCS. Middlesex County STEM Charter School (MCSCS) is a public school serving grades Kindergarten through 8th grades and open to all students who reside in the City of Perth Amboy. The school is free to all students and families and is a replication of the Central Jersey College Prep Charter School, a recipient of the 2016 Blue-Ribbon Award and other prestigious awards. The mission of the Middlesex County STEM Charter School is to provide ...
