While there was just so much to see, we had only planned to stay for a couple hours as we had an eager 3yr old in tow. He wanted robots, so that was on our list and whatever else we wanted to find.
Finding stuff was no problem, but to me the museum seemed a bit thrown together with no real rhyme or reason to it. That's not to say it wasn't fun or interesting, because it is, it just seemed a bit pell mell.
Here are some highlights:
An entire U-boat, nuts.
A tornado. Fun.
And some kind of smoke wall. (maybe hard to see)
The nice part is you can always go back and take a closer look at one section. I would also imagine that students on field trips would get a lot out of it, if they prepare in advance. All in all, a good way to spend a rainy day.