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stuff about fireworks

Abbie Meredith

on 30 November 2012

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Transcript of Fireworks

Abbie Meredith Fireworks What Exactly is a Firework? Fireworks were created first many many years ago in 9th century China. They were discovered when monks threw bamboo shoots packed with gunpowder into fire. Where and When Were the First Fireworks Invented? The first Europeans to master fireworks were chemists. Fireworks were introduced to Europe by Marco Polo, where the recipe for the perfect gunpowder was studied and perfected by Rodger Bacon. Who Were the First Europeans to Master Fireworks? The chemical reactions that occur in fireworks are oxidation and reduction. What are the Chemical Reactions that Occur in Fireworks? A firework is a combustion reaction comprised of a fuel, an oxidizing agent, a reducing agent, a regulator, coloring agents, and a binder. Historically, they have been used for military purposes and celebration, on holidays such as the 4th of July, Guy Fawkes Day in England, and the Indian festival Diwali. What are the Components of Black Powder? Black powder is pretty much gunpowder. It is made up of charcoal(15%), sulfur(10%) and salt peter(75%). Some fireworks contain other additives that alter the level/type of ‘explosion’. What Three Processes Cause Fireworks to Emit Light? The three processes that emit light are incandescence, atomic emission, and molecular emission. What Types of Elements are Responsible for the Colors of Fireworks? The elements responsible for the colors of fireworks are metals, metallic compounds and metal salts. What is Responsible for the Wistling Sound That Often Accompanies Fireworks? When the compounds are contained in a narrow tube, the pulses of escaping gas produce the whistling sound. This is similar to the whistling sound you can produce with your mouth. What are the Component Parts of a Modern Fireworks? What Does Each Part Do? The non-chemical component parts of a firework are a launch tube, a lift charge, a fuse, and breaks. The launch tube is what the firework shoots out of. The lift charge is what propels the firework. The fuse is the wire what is used to light the firework. The break is a compartment that contains charges and stars. Citations http://wiki.answers.com/Q/What_is_responsible_for_the_whistling_sounds_that_accompany_fireworks

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