What reading level is the Little Entomologist 4D; Smithsonian Little Explorer series?

The Little Entomologist 4D; Smithsonian Little Explorer series by Megan Cooley Peterson is at a Grades 3.4–4 reading level (average Grade 3.7). Intended for Lower Grades (Ages 5–8). There are 7 books in the series.

What order should I read the Little Entomologist 4D; Smithsonian Little Explorer books?

The Little Entomologist 4D; Smithsonian Little Explorer series has 7 books in order: 1. Amazing Ants, 2. Brilliant Beetles, 3. Cool Crickets, 4. Dashing Dragonflies, 5. Powerful Praying Mantids, and 2 more.

Little Entomologist 4D; Smithsonian Little Explorer Books in Order

7 books by Megan Cooley Peterson. Reading level: Grades 3.4–4. 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. Little Entomologist 4D; Smithsonian Little Explorer (7 books by Megan Cooley Peterson) lands at reading level Grades 3.4–4, 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.

Books

Grades 3.4–4

Reading Level

1/5

Avg. Intensity

Lower Grades

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

First book Latest book

Little Entomologist 4D; Smithsonian Little Explorer Reading Order

#	Title	Reading Level	Content
1	Amazing Ants Megan Cooley Peterson	Level 3-4	Gentle
2	Brilliant Beetles Melissa Higgins	Level 4	Gentle
3	Cool Crickets Megan Cooley Peterson	Level 3-4	Gentle
4	Dashing Dragonflies Megan Cooley Peterson	Level 4	Gentle
5	Powerful Praying Mantids Melissa Higgins	Level 3-4	Gentle
6	Splendid Spiders Melissa Higgins	Level 3-4	Gentle
7	Wonderful Worms Megan Cooley Peterson	Level 3-4	Gentle

Level 3-4 Gentle

Questions about the Little Entomologist 4D; Smithsonian Little Explorer series

What reading level is the Little Entomologist 4D; Smithsonian Little Explorer series?: The Little Entomologist 4D; Smithsonian Little Explorer series by Megan Cooley Peterson is at a Grades 3.4–4 reading level (average Grade 3.7). Intended for Lower Grades (Ages 5–8). There are 7 books in the series.
What order should I read the Little Entomologist 4D; Smithsonian Little Explorer books?: The reading-order table above lists all 7 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 Little Entomologist 4D; Smithsonian Little Explorer series appropriate for?: The Little Entomologist 4D; Smithsonian Little Explorer 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.