ASHLAND, Ore. — The Fourth of July is just a couple of days away and soon fireworks will be lighting up the sky but behind all the colors and sounds there is a science.
A firework is mainly composed of combustible materials. There are three main factors that go into the explosion including fuel, oxygen, and heat. When all three of these work together, the firework bursts into colors. Those colors are made from different metal salts like copper.
“Different metals will have different colors so maybe … magnesium burns a bright white… depending on the color you want you might use a different metal or combinations of metals, but metals will give you the different colors,” said Summer Brandon, the Education Director at ScienceWorks.
When all of the elements do not work together, the firework will not ignite and will be considered a dud.
Fire experts warn to always make sure you stand back and use safety when lighting fireworks.