Fort Washington's Fourth

Although Fort Washington Park won't have fireworks on the Fourth, it still plans to put some bang into its weekend events with the firing of a cannon. At 1, 2 and 3 p.m. Sunday, volunteers in Civil War uniforms will present an artillery-firing demonstration using a 12-pound mountain howitzer, while explaining traditional muzzle-loading procedures. On a quieter note, at 7 p.m. Saturday, the park will host a sunset concert featuring music and songs from the 70-member Fort Washington Community Chorus and the National Concert Band of America. All events are free. 13551 Fort Washington Rd., Fort Washington. 301-763-4600.

Art With a Punch

A 108-year-old Maryland tradition can be seen in Greenbelt this weekend as part of the city's monthly Artful Afternoon. At 3 p.m. Sunday, Baltimore-based "Professor Horn's Punch and Judy Show" brings to the Greenbelt Community Center its classic puppet show filled with comedy, magic and melodies from a vintage hurdy-gurdy music box. Other activities include a new exhibition of photographs, "Beijing Impressions," by Barbara Tyroler of Greenbelt, and a 1 to 3 p.m. workshop, during which people of all ages can make vases from recycled containers, with artist-in-residence Marla McLean. Artful Afternoon runs from 1 to 5 p.m. and is free. 15 Crescent Rd., Greenbelt. 240-542-2062.

Baseball Blowout

The Bowie Baysox celebrate the Fourth of July with a game against the Harrisburg Senators, followed by a fireworks show. The Class AA affiliate of the Baltimore Orioles kicks off its Independence Day contest at 6:05 p.m. Monday at Prince George's Stadium. Fans can meet the players and get autographs after the game. General admission is $9; children 5 and younger get in free. 4101 NE Crain Highway, Bowie. 301-464-4865.