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WorksheetsFireworks
Total questions: 25
Worksheet time: 25mins
Fireworks look yellow thanks to...
Calcium (Ca) salts
Sodium salts
Barium (Ba) salts
Copper (Cu) salts
Strontium salts make fireworks look...
purple
green
red
silver
________ chemists are working to make fireworks safer for both people and the environment.
Incandescence
Luminescence
Pyrotechnic
Infrared
Fireworks can reach temperatures up to ________°C when burned.
500°C
1,000°C
1,200°C
1,800°C
Gunpowder is used to explode fireworks.
True
False
Fireworks can be legally purchased in how many US states?
50
32
41
27
The type of chemical reaction that occurs in firework explosions is
synthesis
decomposition
combustion
double displacement
Check all the colors that can be produced from metal salts in fireworks.
black
orange
blue
purple
pink
The explosion of a firework happens in how many steps?
1
2
3
4
What do you set fire to when you launch rockets?
the fuse
the stick
the bottle
petrol
What type of reaction occurs to create the explosion in fireworks?
Decomposition reaction
Combustion reaction
Endothermic reaction
Neutralization reaction
Which element is commonly used to create blue colors in fireworks?
Calcium
Strontium
Copper
Magnesium
What causes the loud boom or crackle sound in fireworks?
The color-producing chemicals
The stars burning
Rapid expansion of gases
The time-delay fuse burning
Which element is responsible for the red color in fireworks?
A) Sodium
B) Strontium
C) Barium
D) Potassium
What is the primary purpose of the oxidizer in a firework?
A) To produce sound
B) To provide color
C) To supply oxygen for combustion
D) To stabilize the mixture
Which of the following is a common fuel used in fireworks?
A) Charcoal
B) Water
C) Sand
D) Salt
What role does the binder play in a firework composition?
A) It acts as a fuel
B) It holds the mixture together
C) It provides color
D) It increases the temperature
Which metal salt is used to produce green colors in fireworks?
A) Strontium carbonate
B) Barium chloride
C) Copper sulfate
D) Sodium nitrate
What is the typical speed of a firework shell when launched?
A) 10 m/s
B) 50 m/s
C) 100 m/s
D) 200 m/s
Which component of a firework is responsible for its timing?
A) The fuse
B) The shell
C) The stars
D) The burst charge
What is the main reason for using metal salts in fireworks?
A) To increase the explosion
B) To produce colors
C) To stabilize the reaction
D) To reduce smoke
Which of the following gases is commonly produced during a firework explosion?
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen
What is the function of the 'stars' in a firework?
A) To create sound
B) To produce light and color
C) To stabilize the firework
D) To act as a propellant
Which chemical is often used to create white sparks in fireworks?
A) Magnesium
B) Copper
C) Strontium
D) Barium
What is the effect of adding aluminum powder to a firework composition?
A) It produces a blue color
B) It creates bright flashes
C) It stabilizes the mixture
D) It reduces smoke
