I'm kind of befuddled as to how this place averages 4 stars. A good museum is one that wants you coming back for multiple visits.
After two hours, we were done. Our kids are super-curious and loved places like the Children's Museum right down the road. There, we would visit a dozen times per year.
I think that this museum just feels tired and limited. Even with all of the floors, there's just not a lot of sizzle to the exhibits.
A major metro like Phoenix should have a bigger, badder museum. I guess this just goes to show why this State is ranked in the bottom 5 nationally in all things related to the education of children. Too bad.