4 books · Ages 6–12 · Chapter Books
Scooby-Doo! Science Mysteries is a 4-book series for ages 6–12 by Megan Cooley Peterson. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, The Angry Alien and Revenge from a Watery Grave are great first picks.
No particular order needed — browse and pick what catches your eye.