All Weekend Long:
- Honfest, Hamden, check website for details
- Apasionnata, First Mariner Arena, check website for details
- School of Rock, Ottobar, 3 p.m. Saturday; noon Sunday
- Carnival Science Days, Maryland Science Center, noon to 4 p.m.
- Ocean City Air Show, Ocean City, check website for details
- Elk Run Jazz Festival, Elk Run Winery, noon to 5 p.m.
- WTMD First Thursday featuring Black Box Revelation; J.C. Brooks and the Uptown Sound; 7Horse, Mt. Vernon Park, 5 p.m.
- 15 Billion Years of the Traveling Atom, Maryland Art Place, 5 to 7 p.m.
- Manitoba; The Biters, Ottobar, 8 p.m.