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That's Gross! A Look at Science; Big Buddy Books Books in Order

5 books by Julie Murray. Reading level: Grades 3.3–3.9. 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. That's Gross! A Look at Science; Big Buddy Books (5 books by Julie Murray) lands at reading level Grades 3.3–3.9, with average content intensity 2.6/5.

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.

5
Books
Grades 3.3–3.9
Reading Level
2.6/5
Avg. Intensity
LG
Lower Grades

Content Intensity Across the Series

Varies

Content intensity ranges from Gentle to Intense across the series.

1
2
3
4
5
First book Latest book

That's Gross! A Look at Science; Big Buddy Books Reading Order

# Title Reading Level Content
1 Backyard
Julie Murray
Level 3-4 Gentle
2 Home
Julie Murray
Level 3-4 Moderate
3 Hospital
Julie Murray
Level 3-4 Gentle
4 The body
Julie Murray
Level 3-4 Intense
5 Underwater
Julie Murray
Level 3-4 Intense

Questions about the That's Gross! A Look at Science; Big Buddy Books series

What reading level is the That's Gross! A Look at Science; Big Buddy Books series?
The That's Gross! A Look at Science; Big Buddy Books series by Julie Murray is at a Grades 3.3–3.9 reading level (average Grade 3.7). Intended for Lower Grades (Ages 5–8). There are 5 books in the series.
What order should I read the That's Gross! A Look at Science; Big Buddy Books 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 That's Gross! A Look at Science; Big Buddy Books series appropriate for?
The That's Gross! A Look at Science; Big Buddy Books series is recommended for Lower Grades (Ages 5–8). The average content intensity is 2.6/5. 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.