One of my Facebook groups just put together a list of science books that can serve as resources for parents and teachers, and maybe 4-H agents and others interested in reading more about science. It is divided by age group and science subject and includes quite a few resources on earth science. Not too much on agriculture, though.
I have read a smattering of the listed books, so I can’t verify how good each of them is, but the ones I know generally contain good science. There are instructions on the Google spreadsheet for how to add additional books to the list, so if you have a favorite that is not listed, send it in! You can access the list at https://docs.google.com/spreadsheets/d/1bZXlcawQfTS8vg95IgnOIXQwo8szYkgrrZOQCE3BFms/pubhtml#.
