Library of Why; PowerKids Press Books in Order
3 books by Marian B. Jacobs. Reading level: Grades 4–4.6. Lower Grades (Ages 5–8).
3
Books
Grades 4–4.6
Reading Level
1/5
Avg. Intensity
LG
Lower Grades
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
First book Latest book
Library of Why; PowerKids Press Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | Why can airplanes fly? Marian B. Jacobs | Level 4-5 | Gentle |
| 2 | Why do leaves change color? Marian B. Jacobs | Level 4 | Gentle |
| 3 | Why does it rain? Marian B. Jacobs | Level 4-5 | Gentle |
