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Book 14, Question 73 · Video

Why Does Crunchy Food Sound So Loud When You Chew It?

Video · 1:50 · Crafty Clover explains, from A Million Whys Book 14

Crunchy food sounds loud to you because the sound goes through your jaw bones to your inner ear! Bones carry sound very well. So the chewer hears it much louder than anyone nearby.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why does crunchy food sound so loud when you chew it?

The Big Idea

Crunchy food sounds loud to you because the sound goes through your jaw bones to your inner ear! Bones carry sound very well. So the chewer hears it much louder than anyone nearby.

Crisp Food Breaks

Step one: crisp food cracks. Crunchy food is full of tiny air pockets and brittle walls. When you bite, lots of tiny walls break, and each one makes a little click. That is why crisp chips and crackers are so noisy.

Through the Bone

Step two: sound through bone. Your teeth and jaw sit right next to your ears. The vibrations travel through bone straight to your inner ear.

Louder to You

Step three: louder for the chewer. Bones carry sound very well, so you hear the crunch loudly. People around you hear only the small amount that travels through the air.

A Closer Look

Let's take a closer look! A crunchy bite breaks into tiny pieces. Your teeth shake with each break. The shaking moves through your jaw bone. And it arrives at your inner ear.

Quick Facts

Quick facts! Chewing sounds seem extra loud to the person chewing. Covering your ears can make the crunch seem even louder. Crispy foods that stay crisp make the most noise. Chew with your mouth closed, which is polite and quieter for others.

Think Like a Scientist

Now, take the challenge! Eat a crunchy cracker, then a soft piece of bread. Try covering your ears with your hands too. Which food is louder to you? Ask a friend sitting nearby if it sounds as loud to them.

Outro

Crunch travels through your bones, so it sounds loud, but others hear less. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

Why I wrote this