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Fireworks Report By Lanna

592 words - 3 pages

A flash of red, yellow and green. These are just a few of the colours seen in many different fireworks around the world. You may wonder how these wonderful explosions might happen and what chemicals were used to have a colourful blast off.Here are six different steps on how you make a firework.Shown here in step 1 (below) the pyros wear protective gear to protect themselves from the explosive chemicals. In this picture you see a person mixing a batch of powered chemicals which is the main ingredients to make them explode. The ultimate ingredients is the "stars" which are tiny little pellets.*In step 2 the pyros decide whether to use a huge "star" or a tiny "star" for the big explosion. The bigger the ...view middle of the document...

*Then in step 4 the entire shell is wrapped up in brown paper wheat paste. This is to keep the "stars" and black powder and everything from falling out. This is also to help burn faster.*Now in step 5 the pyrotechnician must place the shell or shells into a large cylinder. The cylinder is placed deep in the sand as well. If a big show were to occur there would be hundred other cylinders with shells in them. Unfortunately these things don't take 5 minutes, it takes a near seven days to finish this project.*In step 6 the fun actually begins. At this time you can light the firework and watch it explode or in this picture shown below it can be cued in so that the computer control board cues the fireworks to different music.*Some of the different chemicals used in fireworks are as followed: Al, NH4NO3, NH4ClO4, C14H10, Sb, SB2S3, BaCO3. Many of these chemicals make different colours or add the smoke effect. For example, Aluminum creates a silver colour with a flash effect.In Conclusion I would just like to personally say never try any of this at home or you could kill yourself. I think fireworks are the most beautiful explosions, but you must be very careful with them. I have learned from experience not to sit up close and watch the spin wheel turn or you may have to run away from the firework if it goes wrong. There have been many injuries from fireworks but most of them are stupid, careless errors.BibliographyNational Geographics-http://www.nationalgeographic.com/ngkids/0007/fireworks/blast1.htmlCharley's Fireworks & Pyrotechnics Info Page- http://fp1.centurytel.net/chzweeth/pyroinfo.htmAbout Chemistry-http://chemistry.about.com/library/weekly/blfireworks.htm

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