- What makes a blizzard?, by Kathleen Weidner Zoehfeld ; illustrated by Maddie Frost
- Curious you, you're on your way!, by Kathleen W. Zoehfeld ; illustrated by H. A. Rey
- What is the world made of?, all about solids, liquids, and gases, by Kathleen Weidner Zoehfeld ; illustrated by Paul Meisel
- Secrets of the seasons, orbiting the sun in our backyard, Kathleen Weidner Zoehfeld ; illustrated by Priscilla Lamont
- What's alive?, by Kathleen Weidner Zoehfeld ; illustrated by Nadine Bernard Westcott
- What lives in a shell?, by Kathleen Weidner Zoehfeld ; illustrated by Helen K. Davie
- How mountains are made, by Kathleen Weidner Zoehfeld ; illustrated by James Graham Hale
- Dinosaurs big and small, by Kathleen Weidner Zoehfeld ; illustrated by Lucia Washburn