Dd age 6 just offcially joined in on homeschooling last springs. Since then whatever Ds(age 9) is doing, she does right along with him, although she doesn't get near as far into it as he does. I just don't think I could keep from pulling out my hair it I had to do two different sciences at once. The only thing I don't like about having them do the same topic is it seems that all of ds's public school friends have already covered so many topics already and we are only in life sciences right now. We have not even covered Earth science, chemistry, physics and such. Well I take that back we did a tiny bit on space last year and the kids loved it, my dd loves the planets.