How does the internet physically connect devices across the world?

The internet is like a giant, worldwide telephone line that lets people talk to each other across the world.

Cables and signals are how it works. Imagine you have a toy phone, and your friend has one too. When you press "talk," your voice travels through wires or even the air to reach your friend’s phone. The internet does something similar, but on a much bigger scale.

Underneath the sea and deep in the ground, there are cables that act like super-fast telephone lines. These cables carry signals from one place to another, just like how your voice goes from your phone to your friend’s.

Sometimes, signals also travel through satellites, which are like little helpers up in space. They catch the signal and send it back down to Earth so people can talk even if they're on opposite sides of the world.

Every device that uses the internet, like your phone or computer, is like a smart speaker that knows how to send and receive messages. These messages are made up of tiny pieces of information, kind of like letters in a long story. All these letters travel through cables or satellites so you can watch videos, play games, or chat with friends from far away!