Why are cities so noisy?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why are cities so noisy?

The Big Idea

Honk! Beep! Rumble! Cities are full of noise. Why are they so loud?

Many Sounds

Step one: Many Sounds. Cities have many sounds: cars, buses, trains, planes, construction, sirens, music, and people talking. They all add up.

Bouncing

Step two: Bouncing. Sound bounces off tall buildings and pavement. So it stays loud between buildings.

Soaking Up

Step three: Soaking Up. Hard surfaces reflect noise, while soft things like grass and trees soak up some. Cities try to reduce noise to help people sleep, learn, and feel calm.

A Closer Look

Let's take a closer look! Birds and wind. Voices and footsteps. Engines and horns. Sounds bounce around.

Quick Facts

Quick facts! Sound waves bounce off walls the way a ball bounces. Trees soak up some sound. Quiet helps us sleep. Protect your ears.

Think Like a Scientist

Now, think like a scientist! With a grown-up, listen for one minute on a busy street. Count the different sounds you hear. Sort them into nature, people, and machines. Which group had the most? Which sound was loudest?

Outro

Cities are noisy because of many machines and people, and sound bounces off hard buildings and pavement. Grass and trees soak some up, and quieter cities help people feel calm. Next time you are downtown, listen for how sounds echo between the buildings. Science is amazing! Keep asking questions! The more you look around, the more wonders you will find, so keep your eyes open! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!