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Fireworks Kristin Rj
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Fireworks Kristin Rj

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Transcript

  • 1. FIREWORKS By R.J. and Kristin
  • 2. Parts of Fireworks ● The parts of a firework are the shell, a fuse, firework stars, and gunpowder in the center
  • 3. How Firework stars are made ● ● ● ● ● ● Stars are made first. They are mixed with sticky paste. Then they are rolled out,cut, and made into balls called stars Hundreds of stars are made. Black powder is put in the center. They are wrapped, then dried
  • 4. ● Chemical reactions Gunpowder has air in it so it will help burn because fire needs heat, fuel, and oxygen. ● ● The fuse is lit, when the fire reaches the Gunpowder it explodes, sending of metals making colors in the sky. If there is an other shell,it will go off too.
  • 5. How colors are made ● Copper - blue ● Barium - green ● Lithium - red ● Strontium - red ● Calcium – orange ● Sodium – yellow
  • 6. ● History of Fireworks Chinese discovered gunpowder ● ● ● In 1533 fire were used in Britain for the first tome During the Elizabethan period, fireworks were high entertainment In the 1830`s the Italians replaced potassium nitrate with potassium chloride
  • 7. Designs and sounds ● ● ● ● There are three types of sounds made by fireworks. A whistle is added to make a whistle noise By drilling a hole in the center of the whistle it will make a screechier. If the whistle is sealed completely it makes a bang.
  • 8. Safety Tips for factories ● ● ● ● Buildings must be separated by blast walls. Roofs weakened to ensure that blast will go upwards and not outwards. Fireworks have to be assembled by hand. Stand 840 Ft. back
  • 9. Safety Tips for civilian use ● ● ● Do not cross safety fences. Never go near an unexploded firework. If you see an unexploded firework, tell an adult ● Leave pets at home ● Have water on hand.
  • 10. Sources ● Nova Fireworks video ● Rainbow Fusion Fireworks book ● ● http://science.howstuffworks.com/innovatio n/fireworks.htm www.cpsc.gov/en/SafetyEducation/SafetyE ducation-center/Firework/