Why Does Baking Soda Fizz? A Base Meets an Acid!

What Crafty Clover says in this video

Intro

Hi! I'm Crafty Clover! Let's discover something amazing. Why does baking soda fizz?

The Big Idea

Pour vinegar onto baking soda, and whoosh! It fizzes, foams, and bubbles up like a volcano! That's a chemical reaction. Two ingredients meet, and make something brand new. Let's see what happens!

Base

Step one: baking soda is a base. Its science name is sodium bicarbonate. Say it: SO-dee-um by-CAR-bun-ate! Bases are the chemical opposites of acids. When the two meet, they react!

Acid

Step two: vinegar is an acid. Vinegar has acetic acid in it. Say it: uh-SEE-tick acid. Acids taste sour, like lemon juice. Vinegar is a gentle acid, safe to use in cooking.

Carbon Dioxide

Step three: they meet, and make carbon dioxide bubbles. The acid and the base swap parts, and make a brand-new gas, called carbon dioxide. That's the fizz! They also leave behind water and a little salty stuff. When one ingredient runs out, the fizzing stops.

A Closer Look

Let's look inside a fizzy volcano! The bubbles are carbon dioxide gas. They're made when the vinegar meets the baking soda. So many bubbles form so fast, they push up the liquid, and it foams right over the top!

Quick Facts

Quick facts! The fizz is a gas you already breathe out! Every breath has carbon dioxide in it. Baking soda helps cakes and pancakes rise, with the same bubbly reaction. The bubbles in soda pop are carbon dioxide too! Plants take in carbon dioxide, to help them make food.

Think Like a Scientist

Now, think like a scientist! With a grown-up, put a pinch of baking soda in a cup. Then add a little splash of vinegar. Listen and watch. What happens? Try adding more vinegar. Does it fizz again?

Outro

So baking soda fizzes because it's a base, and when it meets an acid like vinegar, they make carbon dioxide bubbles! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!