Where can I find Science Labs?

I would try your local Science Museums which frequently have Science classes with labs offered to students. In Wake County there are several options that have programs for homeschooled and other students:

The Museum of Life and Science in Durham

The Science House at NC State's Centennial Campus

Imhotep Academy at NC State

Additionally during the summer schools and universities that offer educational summer camps for kids often include a lab science option. It would be worth it for you to look into some of those.

Good luck.