No. The e-mail confirmation ticket received is your ticket and enables access to the exhibition.
Sales are for a specific time slot on the hour. You may be admitted 15 minutes before or after this time slot depending upon how busy the exhibition is at the time. If you are later than 15 minutes you may be admitted if space allows but we cannot guarantee this due to capacity control.
Yes, this experience appeals to all ages and is appropriate for the whole family.