The Science Behind Carbonated Drinks and Ice Cubes Explained

TLDRShaking carbonated drinks doesn't increase the pressure, but introduces nucleation sites for CO2 bubbles to form. Ice cubes melt faster in fresh water due to cold water sinking and warm water rising. Paper straws create more bubbles in carbonated drinks. Flicking a shaken carbonated drink disarms it. Adding Mentos introduces nucleation sites for faster CO2 release.

Key insights

🍾Shaking carbonated drinks introduces air bubbles as nucleation sites for CO2 to come out of solution.

🧊Ice cubes melt faster in fresh water due to cold water sinking and displacing warm water.

📝Paper straws create more bubbles in carbonated drinks than plastic ones.

💡Flicking the walls of a shaken carbonated drink disarms it by removing clinging bubbles.

🔬Adding Mentos introduces nucleation sites for carbonated drink explosions.

Q&A

Why doesn't shaking a carbonated drink increase the pressure?

Shaking introduces tiny air bubbles that act as nucleation sites for CO2 to come out of solution, but it doesn't increase the overall pressure in the bottle.

Why do ice cubes melt faster in fresh water?

Cold water from the melting ice sinks and displaces warmer water, resulting in a faster melting process.

Do paper straws create more bubbles in carbonated drinks?

Yes, the rough surface of paper straws acts as nucleation sites, leading to the formation of more bubbles.

How can you disarm a shaken carbonated drink?

By flicking the walls of the bottle, the clinging bubbles are dislodged, making it safe to open without explosions.

Why do Mentos cause carbonated drinks to explode?

The rough surface of Mentos serves as numerous nucleation sites, causing the rapid release of CO2 and creating a fountain effect.

Timestamped Summary

00:00Introduction and question about shaking carbonated drink pressure increase.

02:40Demonstration of ice cube melting faster in fresh water than in salt water.

06:55Explanation of how a metal ring can be locked on to a closed loop of chain.

09:19Discussion on the nucleation sites and nucleation process in carbonated drinks.

12:21Sponsor message from Squarespace.