Where do bubbles usually start?

At scratches, specks and fibers

Why do Mentos make soda erupt?

Their rough surface offers many nucleation sites

Why do bubbles rise in steady chains in a glass?

They form repeatedly at the same site

Why does a shaken bottle spray?

Shaking creates many tiny bubbles

Soda Bubbles Quiz: Nucleation, Carbon Dioxide and Fizz

This soda bubbles quiz cracks open a can and watches the fizz rise. Play 10 interactive questions on carbon dioxide dissolved under pressure, carbonic acid tang, why bubbles form on scratches and specks, the Mentos geyser, why warm soda goes flat faster, Joseph Priestley's 1767 carbonated water, champagne bubble chains and why shaken bottles spray.

Start Soda Bubbles Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Gas
Which gas makes soda fizzy?
Press
Why does soda fizz when opened?
Nucl
Where do bubbles usually start?
Acid
Which acid gives soda a slight tang?
Warm
Why does warm soda go flat faster?
Mentos
Why do Mentos make soda erupt?
Who
Who made carbonated water in 1767?
Chain
Why do bubbles rise in steady chains in a glass?
Shake
Why does a shaken bottle spray?
Flat
What does flat mean for soda?

Explanations: answer key for all 10 questions

Q1: Which gas makes soda fizzy?
Answer: Carbon dioxide
It is dissolved under pressure.
Q2: Why does soda fizz when opened?
Answer: Pressure drops and gas escapes
Henry's law explains it.
Q3: Where do bubbles usually start?
Answer: At scratches, specks and fibers
These are nucleation sites.
Q4: Which acid gives soda a slight tang?
Answer: Carbonic acid
It forms when CO2 dissolves.
Q5: Why does warm soda go flat faster?
Answer: Gas dissolves less in warm liquid
Cold soda holds more gas.
Q6: Why do Mentos make soda erupt?
Answer: Their rough surface offers many nucleation sites
Bubbles form all at once.
Q7: Who made carbonated water in 1767?
Answer: Joseph Priestley
He used gas from brewing.
Q8: Why do bubbles rise in steady chains in a glass?
Answer: They form repeatedly at the same site
Specks keep producing bubbles.
Q9: Why does a shaken bottle spray?
Answer: Shaking creates many tiny bubbles
They grow rapidly when opened.
Q10: What does flat mean for soda?
Answer: Most dissolved gas has escaped
Caps help keep gas in.

Why Drinks Fizz

Soda is fizzy because carbon dioxide is dissolved in it under pressure. When the bottle or can opens, pressure drops, the liquid can hold less gas and bubbles form, as described by Henry's law. Some dissolved gas forms carbonic acid, which gives soda a slight tang.

Bubbles rarely form in empty liquid. They start at nucleation sites such as scratches, specks of dust and fibers, which is why bubbles rise in steady chains from the same spots in a glass. Mentos make soda erupt because their rough surface offers countless nucleation sites, so bubbles form all at once.

Warm soda goes flat faster because gas dissolves less in warm liquid. Shaking a bottle creates many tiny bubbles that grow rapidly when opened, causing spraying. Joseph Priestley made carbonated water in 1767 using gas from a brewery, starting a fizzy history.

What This Quiz Teaches

Science fans will enjoy these questions.

Which gas causes fizz
Why bubbles form
Where they start
Why warm soda goes flat
Who invented carbonated water

Did You Know?

Champagne is carbonated by fermentation.
Diet soda erupts well with Mentos.
Sealed caps keep pressure in.
Ice cubes also seed bubbles.
Seltzer is plain carbonated water.