This concept also works for families. Questions answered let go and go. Most kids will set their own pace moving like butterflies to sample the various interactive options. The best way to see a museum is one on one with you child. That way there is the chance to encourage questions.
Answers are good but questions are better because they stimulate thinking.
It's part of learning. The point is not right or wrong answers. It's the process of investigation. Help children relate what they're doing to personal experiences. If your child's question is not easy to answer, say so.