How many Maryellen Gregoire's Early Science books are there?

There are 7 books in the Maryellen Gregoire's Early Science series by Maryellen Gregoire, for ages 2-18.

Maryellen Gregoire's Early Science Books in Order — Wonderli

Maryellen Gregoire's Early Science is a 7-book series for ages 2–18 by Maryellen Gregoire. Each book stands alone — start anywhere.

Start anywhere — each book stands alone.

That said, Structures and We All Need Plants are great first picks.

No particular order needed — browse and pick what catches your eye.