I was homeschooled with BJU biology in 10th grade (yes, I'm a college student who's nerdy enough to read homeschool boards even though it'll probably be 10 years before I have kids...LOL). I had the dvds. The teacher was excellent. I'm currently a biology major in college!
As for scope and sequence, physical science is really just an introduction to chemistry and physics, so if you do both of those, you should be good. (I took physical science, biology, chemistry, and then AP Bio in high school, and no physics. College physics in a couple of years could prove interesting...but I did take Calc, so I'm not too worried :) ).
The only thing I've heard (from my uncle, who is superintendent and former math and science teacher at the private school I graduated from) about not taking physical science is that if you don't get all the way through your physics book you may miss something. Also, I think it sometimes depends on what students are ready for; some may take it just so they don't have to deal with chem in eleventh grade, for example.