Most displays seemed to catch the kids' attention. While I get a sense that over time Jeffrey and Mark are figuring things out, I would like to see the exhibits focus on how pieces of the exhibit interact and the corresponding principles involved. For example, in the basic mechanics section, the exhibit could highlight the lengths of the lever arms, show that the bags weighed the same, and so on. You go to a museum for motivation and a little theory. You go to the library for theory and a little motivation.
Someone needs to bridge the two.
The best displays were those that let the children do hands-on activities, where the child really was interacting with the display, not just watching, reading, or looking. My daughter was more impressed by flashy results that she caused to happen. Definitely for her, the fewer words the better. We belong to the museum because it is a place where, I feel, each time we go, they learn a tiny bit. Not much maybe, but over time I think that they accumulate it until suddenly something makes sense.