- The skeletal and muscular systems, Joseph Midthun, Samuel Hiti
- Extinct!
- Flying foxes and other bats, [book author, Sheri Reda]
- Algorithms, written by Echo Elise González ; illustrated by Graham Ross
- Beavers and other rodents, [Meish Goldish]
- Rocks & minerals of the world
- Logic in coding, written by Echo Elise González ; illustrated by Graham Ross
- Kangaroos and other marsupials, [book author, Julie A. Fenton]
- Plant structure and classification, Joseph Midthun, Samuel Hiti
- Tropical fish
- Inventions
- The World Book student discovery science encyclopedia, v. 9 P-R
- Chemical elements, written by Cassie Meyer ; illustrated by Maxine Lee-Mackie
- Addition, Joseph Midthun, Samuel Hiti
- Christmas in Ukraine
- Howlers and other New World monkeys, [book author, Mary E. Reid]
- Senses
- Traits and heredity
- Plant life cycles, Joseph Midthun, Samuel Hiti
- Reptiles
- Weather
- World book looks at wonders of the world, [created and edited by Brian Williams and Brenda Williams ; designed by Tim Mayer]
- Our planet's pieces, [writer: S. Thomas Richardson]
- Animal homes
- Cells to organ systems
- Childcraft, the how and why library
- Terrific trees
- Wolves and other wild dogs, [book author, Mary E. Reid]
- Christmas in Greece
- The World Book student discovery science encyclopedia, v. 11 T-U
- Gorillas and other apes, [book author: Karen Ingebretsen]
- !Feliz Navidad¡, celebrating a Mexican Christmas
- World of birds
- Mountains, deserts, and grasslands
- World Book [of] America's presidents
- Fossils of the world
- Endangered animals of Asia, A. J. Smuskiewicz
- Organizing data, written by Echo Elise González ; illustrated by Graham Ross
- Endangered animals of Africa
- Christmas in Spain and its capital, Madrid
- The World Book student discovery science encyclopedia, v. 10 S
- Nature's patterns
- Numbers, Joseph Midthun, Samuel Hiti
- Force and motion, [written by] Joseph Midthun ; [art by] Samuel Hiti
- Multiplication, Joseph Midthun, Samuel Hiti
- Alligators and other crocodilians, [writer, Gari D. Fairweather]
- Matter and its properties, [written by] Joseph Midthun ; [art by] Samuel Hiti
- The World Book student discovery science encyclopedia, v. 8 N-O
- World of dinosaurs
- Insects and spiders, created and edited by Brian Williams and Brenda Williams ; designed by Tim Mayer