OK. First of all, notice the vagueness here. “Colleges” (which ones???) and “they”. Hmm. Also, note that he is trying to sell you something. This should raise an eyebrow.
Now. There are in fact integrated courses like this. There are even reasons why one would use them. But “colleges” have not suddenly tossed regular classes, renamed them, and made you need this one guy’s product.
All my sons have so far gotten into college with the standard biology-chemistry-physics standard that I took in high school all those years ago. I never did “physical science” in junior high–we just had “seventh-grade science” and “eighth-grade science” What you do in middle school really doesn’t matter a lot, as long as it prepares you for your high school courses. None of my sons needed an integrated class, and none of their colleges required such a class in college. What is important is at least 2-3 college prep lab science courses.
Now. Why might one take a class like this? Well, chemistry and physics are very related. (“Biology is really just chemistry, chemistry is really just physics, physics is really just math.” LOL) HOWEVER I have an issue with a class like this. You might lead a college to think you had had REAL chemistry plus real physics, when in fact this course needs as a math pre-req only pre-algebra. What kind of high school physics can you do with just pre-algebra? Not a lot. The first quarter of most college prep physics books requires trigonometry. This is a “dumbing down” of science content. Which is the last thing we need.