Reading Further: Firework Science

What are fireworks an example of?

• A prism light effect

• A simple explosion

• A chemical reaction

• A combustion engine

What does the word "pyro" in pyrotechnic mean?

• Light

• Explosion

• Fire

• Sound

What is NOT a sign of an exothermic reaction in fireworks?

• Release of sound

• Release of light

• Release of heat

• Release of water

What are fireworks carefully engineered to release in a precisely timed sequence?

• Sound, colored light, and heat

• Water, smoke, and flames

• Electricity, radiation, and cold

• Gas, odor, and sparks

What causes the bright lights and colors in fireworks?

• The sound of the explosion

• The energy released during chemical reactions

• The reflection of light from the sun

• The use of colored crayons in the fireworks

Why do different substances burn with flames of different colors in fireworks?

• Because they contain different gases.

• Because they contain different metals.

• Because they are at different temperatures.

• Because they are exposed to different amounts of oxygen.

What reaction occurs when metal substances in fireworks react with oxygen?

• A synthesis reaction

• An endothermic reaction

• An exothermic reaction

• A decomposition reaction

Which compounds are mentioned in the text as examples that produce orange, red, and green colors in fireworks?

• Sodium, magnesium, and copper

• Sodium, strontium, and boron

• Potassium, calcium, and barium

• Lithium, strontium, and chlorine

What is the chemical equation for the reaction that occurs when magnesium metal burns in the presence of oxygen to produce a bright white light?

• Mg + CO2 → MgCO3 + energy

• Mg + O2 → 2MgO + energy

• Mg + H2O → Mg(OH)2 + energy

• 2Mg + O2 → 2MgO + energy

Which metals are mentioned as being used in fireworks to create white-colored sparkles?

• Magnesium, titanium, and aluminum

• Magnesium, strontium, and copper

• Strontium, barium, and copper

• Titanium, barium, and strontium