This is a fantastic science resource for younger students. It goes into great detail about how trees change during the seasons, what happens inside of leaves, and has a glossary. It also provides closer pictures for students to see exactly what the book is describing. I would use this for second to third graders, maybe first if there was an advanced reader. This book is basically a lesson in itself. It could be part of a science investigation center. Students could read this in a group and collect different leaves to present.