3 books · Ages 6–9 · Chapter Books, Early Readers
All Aboard Science Reader is a 3-book series for ages 6–9 by Ginjer L. Clarke. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, Black Out!: Animals That Live in the Dark and Hurricanes: Weathering the Storm are great first picks.
No particular order needed — browse and pick what catches your eye.