How Do Fireworks Work?

The video explains the chemistry behind fireworks, focusing on the role of gunpowder, combustion, and metal salts. It details how fireworks are designed to produce colors, shapes, and sounds. The process involves a series of chemical reactions, starting with the ignition of gunpowder, which creates high-pressure gases that propel the firework into the air. Metal salts are used to produce vibrant colors, and their arrangement determines the firework's shape. The video provides a comprehensive overview of the science that makes fireworks spectacular.

What are the two key components of gunpowder that are essential for fireworks?

• Oxidizer and nitrogen

• Fuel and water

• Water and carbon dioxide

• Fuel and oxidizer

What type of reaction occurs inside a firework to produce heat and gas?

• Endothermic reaction

• Exothermic reaction

• Decomposition reaction

• Neutralization reaction

Which metal compound is commonly used to produce blue colors in fireworks?

• Strontium carbonate

• Sodium nitrate

• Barium nitrate

• Copper chloride

How are different shapes created in a firework display?

• By using different types of gunpowder

• By changing the length of the fuse

• By arranging color pellets into specific patterns

• By varying the size of the firework shell

What is the purpose of additional gunpowder in the outer shell of a firework?

• To create more colors

• To make the firework last longer

• To increase the sound of the explosion

• To propel the firework into the air