Thoughts on The Sciences by Edward Holden or 106 Days of Creation for 6th grader

I am considering doing The Sciences by Edward Holden for my 6th grader next year.  I would also love to bring in some living books for the various topics covered in the book (astronomy, physics, chemistry, meteorology & physiography).  Has anyone done this?  If so, what was your experience and what were your favorite living books you incorporated, if any?  I don’t have to use The Sciences as a spine, but it looks like a great living book.  If you used this book I would love to know if you feel it is appropriate for 6th grade (11-12 year old)?  Also, did you cover everything in the book or did you just cover the topics that interested your child?  I was looking at the science books recommended by SCM and I didn’t see any books on physics or chemistry for those grades.  I was wondering if SCM recommended waiting until later grades to cover those topics?  I don’t even have to have a spine at all and considered just picking various topics of interest and books from the SCM science books list.   All of my younger kiddos will be doing 106 Days of Creation Studies and I have considered just using that as a guide but going deeper into those topics for my son with living books for his age specifically.   The Sciences and 106 Days of Creation do cover some of the same topics, like weather and astronomy.  We do plan to use the science textbooks recommended by SCM for the following year (7th grade) so we really want to soak up this last year of being purely living science books!  And of course, we will be doing nature study along with whatever we do!  🙂  Thanks for any feedback in advance!

Regan