But the invention of colored fireworks is relatively recent and ... strontium to a color pyrotechnic mix produces a red flame; copper, blue; barium, green; and sodium for yellow.

Are you ready for the upcoming Memorial Day celebration? I can't wait to head to our local fireworks show and enjoy the ...

Strontium chloride, the compound used to make red fireworks, can withstand at least 1,500 degrees Fahrenheit. That's hotter than some lava. But to make a blue firework, you need copper chloride ...