Yes there's a cafe
Nice open outside area with plenty of seats
There's a nice boy scout campground that you can hang out at behind the museum.
Yes, benches all around. The kids area. The benches are old airline seats that are pretty comfortable.
There are benches outside by the playground. There were also do table and seats inside the lobby area of the Space side.
Yes in the food court
There are many outside attractions that are free. They even have a picnic area.
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