Thanks, melmichigan!  May I ask how much of a time commitment it was? Per week? And for how many weeks?  Did you DD participate on a school team that met after school or during school?
The gifted program in DS8's school has these little mini-courses that are offered during the weekly gifted pullout class.  She runs about five classes per quarter and the kids (grade 4-6) can sign up for whichever one class they are most interested in.   I was wondering if I could get the gifted teacher to create a pullout class for the kids who were interested in participating in Science Olympiad. It sounds like a great idea to me, but I was curious as to how much work it would be before I proposed it to the gifted teacher.
A quick glance at the homeschooling page for Science Olympiad says that your DD may be able to participate on her previous school's team. ??  Just thought I would point that little tidbit out, in case your DD 
really like it and wanted to continue it.  
 http://soinc.org/home_schools