Rhode Island Standards
RI.PS1. Physical Science: All living and nonliving things are composed of matter having characteristic properties that distinguish one substance from another (independent of size or amount of substance).
PS1 (5-8) MAS-5. Given graphic or written information, classify matter as atom/molecule or element/compound (Not the structure of an atom).
PS1 (7-8)-5. Students demonstrate an understanding of the structure of matter by...
5b. Classifying common elements and compounds using symbols and simple chemical formulas.