2 books · Ages 6–11 · Graphic Novels
First Graphics: Science Mysteries is a 2-book series for ages 6–11 by Rebecca Olien. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, How Do We Know about Dinosaurs? A Fossil Mystery and Where Do the Birds Go? A Migration Mystery are great first picks.
No particular order needed — browse and pick what catches your eye.