Portia, we are using Apologia also. We are using the Young Explorer Chemistry and Physics. I actually like the experiments in that one. We do at least one every day. I like it because even though she needs me to read it because of its depth, it is written in a way that if I read it, she can understand it. What are you supplementing with?
We tried supercharged science for my DD8, but I found the reading too complicated. I was having to re-explain everything. I think we will do supercharged science with my DD10 next year, if she homeschools. She would be able to handle doing it on her own.