| Fireworks rockets are the simplistic models | | | | reaction by releasing the oxygen. This |
| of real rockets. Most of the fireworks | | | | reaction is initiated by heat, rather than |
| rockets are made from gunpowder. Gunpowder is | | | | spontaneously. |
| the mixture of potassium nitrate (75%), | | | | |
| charcoal (15%) and sulfur (10%). This fuel | | | | The trust of the rocket occurs when the hot |
| provides the thrust to the fireworks rockets. | | | | gases escape from the nozzle of the rocket. |
| It is normally packed into casings such as | | | | The nozzle has to withstand the intense heat |
| cardboard and paper tubes. In most fireworks | | | | of the flames. A long wooden or bamboo stick |
| rockets, there is a fuse at the base. Cotton | | | | is usually used in a skyrocket to reduce the |
| twine coated with gunpowder is generally used | | | | center of balance. This distributes the |
| as the fuse. The fuse burns quickly into the | | | | entire mass over a linear distance and |
| core of the fireworks rockets ignites the | | | | stabilizes the rocket through its flight. |
| gunpowder. | | | | |
| | | | The component that produces the stars and |
| The most important ingredient of gunpowder is | | | | colors is generally located below the |
| the potassium nitrate. Potassium nitrate | | | | nosecone section of the rocket. An internal |
| contains three oxygen atoms, a nitrogen atom | | | | fuse is usually provided to delay the release |
| and a potassium atom. The fuse and the rocket | | | | of stars and other effects. This delay |
| use the air obtained from the three oxygen | | | | usually lasts before the apex, where a small |
| atoms in the potassium nitrate molecule to | | | | explosion shoots the firework's stars in the |
| burn the carbon and sulfur. That is, | | | | desired directions. |
| potassium nitrate oxidizes the chemical | | | | |