What reading level is the Ignite; Whoops! A History of Bad Days series?

The Ignite; Whoops! A History of Bad Days series by Don Nardo is at a Grades 5.5–6.2 reading level (average Grade 5.8). Intended for Middle Grades (Ages 9–12). There are 4 books in the series.

What order should I read the Ignite; Whoops! A History of Bad Days books?

The Ignite; Whoops! A History of Bad Days series has 4 books in order: 1. Bad Days in Battle, 2. Bad Days in Exploration, 3. Bad Days in Science and Invention, 4. Bad Days in Sports.

What age is the Ignite; Whoops! A History of Bad Days series appropriate for?

The Ignite; Whoops! A History of Bad Days series is recommended for Middle Grades (Ages 9–12). The average content intensity is 1.3/5.

Ignite; Whoops! A History of Bad Days Books in Order

4 books by Don Nardo. Reading level: Grades 5.5–6.2. Middle Grades (Ages 9–12).

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. Ignite; Whoops! A History of Bad Days (4 books by Don Nardo) lands at reading level Grades 5.5–6.2, with average content intensity 1.3/5. 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 5.5–6.2

Reading Level

1.3/5

Avg. Intensity

Middle Grades

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

First book Latest book

Ignite; Whoops! A History of Bad Days Reading Order

#	Title	Reading Level	Content
1	Bad Days in Battle Don Nardo	Level 5-6	Mild
2	Bad Days in Exploration Kathryn Hulick	Level 5-6	Gentle
3	Bad Days in Science and Invention Michael Regan	Level 6-7	Gentle
4	Bad Days in Sports Jon Mathaler	Level 5-6	Gentle

All Ignite; Whoops! A History of Bad Days Books

Bad Days in Battle

Don Nardo

Bad Days in Battle

Don Nardo

Level 5-6 Mild

Bad Days in Exploration

Kathryn Hulick

Bad Days in Exploration

Kathryn Hulick

Level 5-6 Gentle

Bad Days in Science and Invention

Michael Regan

Bad Days in Science and Invention

Michael Regan

Level 6-7 Gentle

Bad Days in Sports

Jon Mathaler

Bad Days in Sports

Jon Mathaler

Level 5-6 Gentle

Questions about the Ignite; Whoops! A History of Bad Days series

What reading level is the Ignite; Whoops! A History of Bad Days series?: The Ignite; Whoops! A History of Bad Days series by Don Nardo is at a Grades 5.5–6.2 reading level (average Grade 5.8). Intended for Middle Grades (Ages 9–12). There are 4 books in the series.
What order should I read the Ignite; Whoops! A History of Bad Days books?: The reading-order table above lists all 4 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 Ignite; Whoops! A History of Bad Days series appropriate for?: The Ignite; Whoops! A History of Bad Days series is recommended for Middle Grades (Ages 9–12). The average content intensity is 1.3/5. 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.