SIDNEY — Holy Angels School will hold its Back to School Open House on Sunday, Aug. 19, from 1 to 2:30 p.m.. Teachers and staff will be available to meet and greet the students, and hot dogs and punch will be served in the cafeteria. Rounding out the festivities, representatives from Cargill will be present to unveil their surprises for student perfect attendance to be offered at school this year.