Cym -
Sounds like you are doing a major amount of work on the science fair, and that it isn't where you want to be putting such a large amount of your energy, yes?
I think that you can train up a support team for the science fair, but sadly, it will take time.
I think it's great that your children are being appropriatly educated - Yippee!
What do you think of the online "interest survey" idea? Would folks even respond? How about a paper interest survey to hand to the parents at the science fair?
Sometime I think about taking online courses in gifted education, don't they all sound yummy?
Trinity