If your state only requires 2 credits of lab science for high school (out of 3 total credits), and you know that you plan to do biology and chemistry for those, then feasibly you have some flexibility for a 9th grade physical science course right?
Since the J. H. Tiner books are listed on Master Books as being for 7th-9th grade, what about combining the Chemistry, Physics and Astronomy books, along with some other resources, for a year of “physical science”? I know that most consider them middle school level (and for some of his books, I agree), but looking through the Physics book, it goes pretty deep for middle school.
I have many of the books, and really like them. We’ve used Exploring Planet Earth and Exploring the World of Medicine, but I’m not sure we’ll get to the rest in middle school.
Am I totally off base? I’m planning ahead, and so far I don’t like any high school physical science that I’ve seen. I do plan to go the more traditional route for biology and chemistry, if that makes a difference.