Fireworks

Fireworks operate through an explosive chemical reaction involving gunpowder, which contains potassium nitrate and carbon. A fuse ignites the gunpowder, launching the firework and causing it to explode. Metal salts in the fireworks produce vibrant colors when ignited, such as green from copper sulphate, red from lithium carbonate, and yellow from sodium nitrate. These chemical reactions create the spectacular displays seen during celebrations.

What are the two main ingredients in gunpowder used in fireworks?

• Sodium nitrate and carbon

• Potassium nitrate and carbon

• Potassium nitrate and sulfur

• Sulfur and carbon

What role does the fuse play in a firework?

• It ignites the gunpowder to start the reaction

• It adds color to the explosion

• It provides the oxygen needed for burning

• It acts as a stabilizer for the firework

How does the firework get launched into the air?

• By a mechanical spring mechanism

• By the pressure of compressed air

• By the explosion of the outer shell

• By gases produced from burning gunpowder

Which chemical is responsible for producing a green color in fireworks?

• Lithium carbonate

• Sodium nitrate

• Potassium nitrate

• Copper sulphate

What color does sodium nitrate produce when used in fireworks?

• Green

• Blue

• Yellow

• Red