A second annual Greater Brockton Health Fair is being held Saturday from 11 a.m. to 4 p.m. at Brockton High School. Sponsored by the Greater Brockton Community Health Network Area, Brockton AmeriCorps, and Walgreens, the free event is focused on improving residents’ access to social services and health resources. There will be health screenings, social service and mental health representatives, and entertainment, as well as children’s activities and a basketball and tennis clinic. For more information, visit www.CHNA22.org.