UNI student affiliates of the American Chemical Society (ACS) will host a “Halloween House”. There will be a variety of Halloween-themed demonstrations in rooms such as the “Devil’s Den," “Frankenstein’s Lab,” “Mummy’s Yummies” and “Grossology Lab." The event is free and invites children of all ages. UNI students in costume will help children with hands-on chemistry activities, such as making liquid-nitrogen ice cream and gak. Halloween House is held in conjunction with National Chemistry Week and is a program of the ACS designed to reach the public with a positive message about chemistry.