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Extreme Machines (Rosen/PowerKids); PowerKids Press Books in Order

Extreme Machines (Rosen/PowerKids); PowerKids Press is a 5-book series by Ian F. Mahaney for ages 9–12, at a grades 5–6 reading level, with gentle content (HootRated intensity 1/5).

Books
5
By publication date
Reading level
Grades 5–6
Average grade level 5.7
Recommended ages
Ages 9–12
From HootRated age ratings
Content intensity
Gentle
HootRated 1/5

Extreme Machines (Rosen/PowerKids); PowerKids Press Reading Order

Series numbers aren't available for most Extreme Machines (Rosen/PowerKids); PowerKids Press books, so they're listed by publication date (oldest first).

# Title Reading Level Ages Content
1 Extreme Aircraft
2015
Level 5-6 9-12 Gentle
2 Extreme off-Road Vehicles
2015
Level 5-6 9-12 Gentle
3 Extreme Snow Vehicles
2015
Level 5-6 9-12 Gentle
4 Extreme Unmanned Vehicles
2015
Level 6 9-12 Gentle
5 Extreme Watercraft
2015
Level 5-6 9-12 Gentle

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

1
2
3
4
5
First book Latest book

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. Extreme Machines (Rosen/PowerKids); PowerKids Press (5 books by Ian F. Mahaney) lands at a grades 5–6 reading level, with average content intensity 1/5. Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.

The reading-order table above lists every book with per-volume reading level, age and intensity ratings 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.

Similar reading level, content intensity and themes.

Questions about the Extreme Machines (Rosen/PowerKids); PowerKids Press series

What reading level is the Extreme Machines (Rosen/PowerKids); PowerKids Press series?
Extreme Machines (Rosen/PowerKids); PowerKids Press books are at a grades 5–6 reading level (average grade level 5.7), and HootRated recommends the series for ages 9–12. There are 5 books in the series.
What order should I read the Extreme Machines (Rosen/PowerKids); PowerKids Press books?
Series numbers aren't available for most Extreme Machines (Rosen/PowerKids); PowerKids Press books, so HootRated lists them by publication date: Extreme Aircraft (2015); Extreme off-Road Vehicles (2015); Extreme Snow Vehicles (2015); Extreme Unmanned Vehicles (2015); Extreme Watercraft (2015).
What age is the Extreme Machines (Rosen/PowerKids); PowerKids Press series appropriate for?
HootRated recommends Extreme Machines (Rosen/PowerKids); PowerKids Press for ages 9–12. Content is gentle (HootRated intensity 1/5). Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.