Why Are Our Outer Ears Shaped Like Curly Funnels?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why are our outer ears shaped like curly funnels?

The Big Idea

Your outer ears are shaped like curly funnels to catch sound and help you find where it comes from! The curves and ridges catch sound waves and bounce them into the ear canal. They also change the sound a little, which helps your brain.

Catch Sound

Step one: catch sound. The outer ear works like a funnel. Its curves catch sound waves and bounce them into the ear canal.

Change The Sound

Step two: change the sound. The folds change the sound slightly, depending on whether it comes from above, below, in front, or behind. These changes are tiny, but real.

Find The Direction

Step three: find the direction. Your brain uses these small changes to work out where a sound is coming from. No two ears have exactly the same shape.

A Closer Look

Let's take a closer look! First, sound waves arrive. The curves of your ear catch them. The funnel shape sends them down the canal. Your brain works out where the sound came from. Your ears are amazing.

Quick Facts

Quick facts! Quick facts about outer ears. The curly part is called the pinna. Many animals can move their ears to catch sound. No two people have exactly the same ears. Your brain learned your ears' clues.

Think Like a Scientist

Now, think like a scientist! Close your eyes and have a friend snap fingers behind you at different heights. Point to the sound. Now fold your ears forward with your hands and try again. Is it harder to tell where the sound is? Share what you discover with a grown-up.

Outro

Your curly ears are clever sound catchers. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!