Waves Can Carry Information

Waves are disturbances that move energy from one place to another. Waves can carry information, which is facts or messages that help us understand something. This matters because waves help us communicate and learn about the world around us.

When you talk to a friend, sound waves carry your voice through the air. Sound waves are vibrations that travel through materials like air, water, or solid objects. Your vocal cords vibrate and create sound waves that move to your friend's ears. Without sound waves, your friend couldn't hear you even if you were standing right next to each other.

Light waves also carry information. Light waves are a type of energy that our eyes can detect. When you look at a book, light waves bounce off the pages and travel to your eyes. Your brain uses this information to see the words and pictures. Light waves work like messengers delivering pictures to your eyes.

Technology uses waves to send information too. Phones turn your voice into digital patterns, which are coded signals made of waves. These patterns travel through wires or through the air to reach another phone. Television, radio, and computers also use waves to send information. Even walkie-talkies use radio waves to carry messages between devices, which are tools or machines that do specific jobs.

Different types of waves can carry different kinds of information over short or long distances.