In Wordly Wise 3000 Book 4, each 15-word lesson begins with an alphabetized Word List that gives pronunciations, parts of speech, and concise definitions, and uses each word in a sentence. Some of the words taught in Book 4 include epidemic, astute, mortal, rapture, irate, principal, kindled, exotic, complement, desolate, omen, and foster. Definitions are followed by exercises that distinguish usage, create sentences and phrases, identify synonyms and antonyms, and complete analogies. Narrative topics in this book include: The Trail of Tears, Dodo Birds, Pandora's Box, Mount Vernon, Migrant Workers, Pam Postema (Women in Baseball), The Midas Touch (Greek Mythology), The Triangle Fire, The Spanish Conquest, Manatees, Auguste Piccard (Exploring the Ocean), Seasons, Amelia Earhart, Bigfoot, Bluegrass, Harbor Seals, The Louisiana Purchase, A Raisin in the Sun by Lorraine Hansberry, The Iditarod, and Pollution.