- Gravity, [written by] Joseph Midthun ; [art by] Samuel Hiti
- Killer whales and other toothed whales, [writer, Julie A. Fenton]
- The World Book student discovery science encyclopedia, v. 7 M
- Cardinals and other songbirds, [writer, Meish Goldish]
- Atoms and molecules, written by Cassie Meyer ; illustrated by Maxine Lee-Mackie
- Chemistry everywhere!, written by William D. Adams ; illustrated by Maxine Lee-Mackie
- Hardware, written by Echo Elise González ; illustrated by Graham Ross
- Quail and other galliforms, [book author: Rob Knight]
- Endangered animals of North America, A. J. Smuskiewicz
- The cell cycle
- The age of knights and castles, created and edited by Brian Williams and Brenda Williams ; designed by Tim Mayer
- Christmas on the Emerald Isle
- Jobs to do
- Trees of the United States and Canada
- Light, [written by] Joseph Midthun ; [art by] Samuel Hiti
- Lions and other wild cats, [Steve A. Horak]
- Spiders and other arachnids, [writer, Steven Otfinoski]
- Acids, bases, and salts, written by William D. Adams ; illustrated by Maxine Lee-Mackie
- Mammals of the United States and Canada
- Amphibians & reptiles of the United States and Canada
- Christmas in Holland
- Chemistry experiments, written by Jeff De La Rosa ; illustrated by Maxine Lee-Mackie
- Good food for you
- Christmas in Scotland, Christmas around the world, from World Book
- Coding languages, written by Echo Elise González ; illustrated by Graham Ross
- Green buildings
- Consumable goods
- The World Book student discovery science encyclopedia, v.1
- Giraffes and other hoofed mammals, [writer, Meish Goldish]
- Animal behavior, Joseph Midthun ; Samuel Hiti
- Forests and wetlands
- The World Book student discovery science encyclopedia, v. 6 I-L
- Hedgehogs and other insectivores, [book author, Steven Otfinoski]
- Endangered animals of South America, A. J. Smuskiewicz
- Christmas together in Switzerland
- Mars
- The nervous system, Joseph Midthun, Samuel Hiti
- A place in space
- The circulatory system, Joseph Midthun, Samuel Hiti
- Rain forest animals
- Rattlers and other snakes, [book author, Cecilia Venn]
- 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
- Inventions
- The World Book student discovery science encyclopedia, v. 9 P-R
- Tropical fish
- Kangaroos and other marsupials, [book author, Julie A. Fenton]