Traveling Jews, suggesting that I try a company called Home Science Tools. I checked out their website, and was pretty impressed. In fact, we got a microscope from them for the holidays.
But I couldn't bring myself to add them to the sidebar list of suppliers, because of books like the one shown here -- biology curriculum from places like Bob Jones and "God's Design" that teach creation "along with evolution." (If you think this issue just affects homeschoolers, though, see my related blog posts here and here.)
Interestingly, parents whose children have used these texts say their kids score very well on standardized science entry exams for college. (I wonder whether that's a comment on what the tests include...)
I realize that so far, despite the number of resources I've turned up, our chemistry studies this year have stayed on a pretty superficial level. There are lots of homeschoolers who are going through much more rigorous courses than I am. So, what programs do your kids use? How have they worked out?