What Makes Soda Fizzy? Fun Facts for Kids

Have you ever opened a can of soda and heard that psssssss sound, followed by a bunch of bubbles fizzing to the top? Ever wondered what causes it? Or why soda explodes when you shake it?

Let’s pop open a can of soda science with some fun facts that’ll make you look at your favorite drinks in a whole new way!

Why Does Soda Fizz?

The fizz in soda comes from a gas called carbon dioxide (or CO₂ for short). When soda is made, carbon dioxide is pushed into the liquid under high pressure, kind of like stuffing air into a balloon. That pressure traps the gas inside the drink, so when you open a can or bottle, the pressure is released, and the gas escapes in the form of a bunch of tiny bubbles!

Why Does Soda Explode When You Shake It?

When you shake a can of soda, you mix the gas and liquid together and create a lot of extra bubbles. Open it too soon, and all those bubbles try to escape at once, causing the soda to fizz everywhere.

Pro Tip: If you accidentally shake or drop your soda, just let it sit for a few minutes before opening it!

Does Ice Make Soda Fizz More?

Short answer, yes! the solid surface of the ice gives the bubbles something to stick to. That’s why soda fizzes even more when it’s poured into a cold glass.

Do All Fizzy Drinks Have Carbon Dioxide?

Yep! From Pepsi to root beer, and even sparkling water, all fizzy drinks use carbon dioxide for their bubbles. Even some natural spring waters are fizzy because they have CO₂ from underground rocks!

Candy + Soda

If you’ve ever seen the classic Mentos and Diet Coke experiment, you know what happens when you combine candy and soda! Some candy, like Mentos, cause a rapid release of gas, creating a giant soda geyser (definitely an outside-only activity)!

Fun Fact: Soda Used to Be a Medicine?

Back in the 1800s, soda fountains were found in pharmacies, and people believed carbonated drinks could help settle your stomach. Today, most people just drink it for the taste, but that fizz still feels refreshing!

Sip, Play, and Win at Metropolis Resort!

After bouncing in the trampoline park, racing go-karts, or dominating in the arcade at Action City, you’re sure to work up a thirst. Luckily, there are plenty of spots to grab an ice-cold soda at Metropolis Resort! Check out our huge selection of sodas, energy drinks, and more at the City Pizza Co. counter, City Eats, and in the vending machines throughout the resort!