Great Zoos of the United States; PowerKids Press Books in Order
5 books by David A. Oehler. Reading level: Grades 4.7–5.2. Lower Grades (Ages 5–8).
Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. Great Zoos of the United States; PowerKids Press (5 books by David A. Oehler) lands at reading level Grades 4.7–5.2, with average content intensity 1/5. Intensity stays consistent across the series — a kid who can handle the first book can generally handle the rest.
The reading-order table below lists every book with per-volume reading level and intensity badges so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
Great Zoos of the United States; PowerKids Press Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | Cincinnati Zoo and Botanical Garden (Great Zoos of the United States) David A. Oehler | Level 4-5 | Gentle |
| 2 | Saint Louis Zoo (Great Zoos of the United States) Jillian Powell | Level 4-5 | Gentle |
| 3 | San Antonio Zoo Stacy McReynolds | Level 5-6 | Gentle |
| 4 | San Diego Zoo Claudia Pearce | Level 4-5 | Gentle |
| 5 | Smithsonian National Zoological Park (Great Zoos of the United States) Diana Estigarribia | Level 4-5 | Gentle |
All Great Zoos of the United States; PowerKids Press Books
Cincinnati Zoo and Botanical Garden (Great Zoos of the United States)
David A. Oehler
Cincinnati Zoo and Botanical Garden (Great Zoos of the United States)
David A. Oehler
Saint Louis Zoo (Great Zoos of the United States)
Jillian Powell
Saint Louis Zoo (Great Zoos of the United States)
Jillian Powell
San Antonio Zoo
Stacy McReynolds
San Antonio Zoo
Stacy McReynolds
San Diego Zoo
Claudia Pearce
San Diego Zoo
Claudia Pearce
Smithsonian National Zoological Park (Great Zoos of the United States)
Diana Estigarribia
Smithsonian National Zoological Park (Great Zoos of the United States)
Diana Estigarribia
Questions about the Great Zoos of the United States; PowerKids Press series
- What reading level is the Great Zoos of the United States; PowerKids Press series?
- The Great Zoos of the United States; PowerKids Press series by David A. Oehler is at a Grades 4.7–5.2 reading level (average Grade 4.9). Intended for Lower Grades (Ages 5–8). There are 5 books in the series.
- What order should I read the Great Zoos of the United States; PowerKids Press books?
- The reading-order table above lists all 5 books with per-volume reading level and intensity ratings. Start with book 1 and read in publication order unless the table indicates a different recommended order for newer readers.
- What age is the Great Zoos of the United States; PowerKids Press series appropriate for?
- The Great Zoos of the United States; PowerKids Press series is recommended for Lower Grades (Ages 5–8). The average content intensity is 1/5. Check the intensity trajectory above to see whether content gets heavier across the series — if it does, sensitive readers may want to stop earlier in the run.