HARLAN -- The Harlan Community Library and Iowa State University Extension Shelby County are hosting their third-annual science fair Monday, Feb. 28 at Veterans Memorial Auditorium in Harlan. Coordinators are Emily Kurth-Christensen, Harlan Community Library; Mary Taggs, Shelby County Extension and Outreach; and Michael Christensen, Shelby County State Bank. The fair will be open to the public from 6:30-7 p.m.