Why Do We Fart?

Words to Know

**Gas**

A puff of air made inside your body

"A fart is just extra gas."

**Digestion**

The way your body breaks down food

"Gas is made during digestion."

**Bacteria**

Tiny helpers in your gut, too small to see

"Bacteria make gas when they eat leftovers."

**Intestines**

The long tubes where food is broken down

"Gas builds up in your intestines."

**Burp**

Extra gas that comes out the top (your mouth)

"A burp is gas going the other way!"

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