Fourth of July fireworks will return Friday on NBC, PBS and CNN. The networks will air TV specials such as "Macy's 4th of July Fireworks Spectacular."

Round Rock's all-day celebrations will include a parade throughout downtown, pig races, a speech by Mayor Craig Morgan, and musical performances. The Elevation Band will take the stage at 7 p.m., and the Austin Symphonic Band will perform alongside the fireworks show around 9:30 p.m.

From smoke balls and sparklers to firecrackers and mortars, fireworks are a staple of many Fourth of July weekend festivities. But with the vast displays of these brightly colored pyrotechnics comes many safety risks,