Yes, but keep an eye for "no food or drink" signs.
Yes - and you can eat food you brought in the cafeteria or between exhibits. I see a fair number of people stopping for applesauce/ crackers/ fruit/ etc on the benches, but the cafeteria tables are a good option if your kids do better with a table.
Yes but in some rooms like pla etTium you cannot. Bring in food or drinks
Yes.
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