The term CHEM CLASS is composed of four crossword solutions: ELEMS (5 letters), LAB (3 letters), LABS (4 letters), and SCIS (4 letters). ELEMS stands for Elements, which are the building blocks of matter. LAB stands for Laboratory, which is a place where experiments are conducted. LABS stands for Laboratories, which are multiple laboratories. Finally, SCIS stands for Sciences, which are branches of knowledge that are studied and investigated. Together, these four crossword solutions form the term CHEM CLASS, which refers to a class in Chemistry.