Knowing what nouns are is one thing; now your child must also learn all about the plural forms of nouns and the rules that guide them. First, explain to your child that most singular nouns are made plural by adding «-s» to the end of the word. For example, the plural of the word «cat» is «cats». Next, tell your kids that when singular words end in «-ch, -sh, -s, -x, -zz», the words are made plural by adding «-es». For example, the plural of «buzz» is «buzzes». This worksheet requires that your child circle the correct plural form of each noun.