HOUSTON, Texas (KTRK) -- Pyrotecnico, the company that executes the firework show at Shell Freedom Over Texas, says a lot goes into a big show like Saturday's. "There are hundreds of different effects ...

J&M Displays employee Callie Williams works on wiring fireworks for the Freedom Festival fireworks on the Second Avenue bridge in Cedar Rapids on Thursday. (Savannah Blake/The Gazette) Buy Photo CEDAR ...

But how do fireworks shows come together, and what all goes into setting up? Melissa Tackitt with Pyro Shows, a company that specializes in fireworks and special effects displays, says it’s more than ...

Finished fireworks should never be left loosely in the work shed, as a stray spark could ignite them all at once. They should be stored in fireproof, well-ventilated containers or sheds, kept away ...

The Fourth of July is synonymous with fireworks displays, but before all the bright colors and thunderous booms, scientists are hard at work behind the scenes making each firework display its best.