St. Luke’s Preschool/Kindergarten Open House at St. Luke’s United Methodist Church, St. Michaels. 9:30 to 11:30 a.m. For more info. tel: 410-745-2534.

NightCat of Easton presents Po’ Girl, NightCat Cafe, 5 Goldsborough St., Easton. 8 p.m. For more info. tel: 410-690-3662.

Free Information Session at Radcliife Creek School, Chestertown for parents and students exploring educational options. Director Molly Judge will discuss Radcliffe’s unique teaching methodologies. 8:45 to 11 a.m. For more info. tel: 410-778-8150 or visit www.radcliffeschool.org.

2010 Art Competition Exhibit on view at Adkins Arboretum, Ridgely. Now in its 11th year, the show has grown to draw many entries from diverse artists from the Mid-Atlantic and beyond. For more info. tel: 410-634-2847, ext. 0.

Play: The Tred Avon Players present Seven Keys to Baldpate by George M. Cohan, directed by Zack Schlag, at the Oxford Community Center. Fri. and Sat., 8 p.m., Sun., 2 p.m. and Thurs., 7 p.m. For more info. tel: 410-226-0061.

Academy for Lifelong Learning: The Black Hole War with Ron Lesher and Chip Britt at the Steamboat Building Auditorium, Chesapeake Bay Maritime Museum, St. Michaels. 1:30 to 3 p.m. For more info. tel: 410-745-2916, ext. 111.