Get smart curated videos delivered to your inbox every week.      
The Kid Should See This

How are sparklers made?

Steel wires are loaded into racks that are dipped twice into a slurry of boric acid, barium nitrate, water, corn starch, iron filings, and aluminum powder. Once they’ve baked in an oven, they’re inspected, measured, and packaged.

From Discovery UK, this low-resolution How It’s Made: Sparklers video walks us through the entire process.

making sparklers
making sparklers
There are more fireworks in the archives.

Updated link.

This award-winning video collection is reader-supported. Become a sustaining member to keep TKSST online and free for everyone, including teachers and parents who use it as a resource to spark learning and curiosity for kids.