The UNI Student Chapter of the American Chemical Society, in collaboration with students from other science departments, will be hosting a “Halloween House” Friday, October 24, from 4:30-7:30 p.m., on the second floor of McCollum Science Hall. UNI students will be performing Halloween-themed science demonstrations and supervising hands-on activities in rooms such as the “Witches’ Lair”, “and “Frankenstein’s Lab”. This event is free and open to the public. Costumes are welcome. The activities are intended for elementary school age children, but can be enjoyed by children of all ages.