Why Soft Drinks Fizz

Soft drinks fizz because of carbon dioxide gas (CO₂)

💨 What happens inside the bottle

• The drink is packed with CO₂ gas under high pressure

• Inside the sealed bottle, gas stays dissolved in the liquid

• When you open it, pressure drops suddenly

🎉 Why bubbles appear

• The gas escapes as tiny bubbles

• These bubbles rush out to the surface

• That’s the fizzing sound and foam

🧪 Simple example

• Think of a soda bottle like a shaken balloon full of air

• When you open it, the air rushes out fast

• That rush makes bubbles and fizz