Communication Over Distances

Some of the ways we use sound to communicate include talking, beeping a horn and ringing a bell.

Some of the ways we use light to communicate include traffic lights and the flashing lights of a police car or fire truck.

To communicate with someone far away you can use a telephone, video chat or text message.

To invite them over, to say hello, to share good news, etc.

We use light to see where our food is located, to see a teacher and to watch TV. We use sound to hear, listen to music and talk.

Video on the computer, TV, people talking, bell ringing, etc

They use sirens and flashing lights to communicate with light and sound. Their message is that there is an emergency and you should get out of the way!

Possible answers: Morse code, flashing lights of a car, a light house warning boats.

Each letter of the alphabet is represented by a code of short and long flashes of light.

Sirens can communicate an emergency; spooky music can communicate that something scary is about to happen in a movie.

Animals might warn other animals about danger nearby. Crickets might chirp to let other crickets know where they are. Birds often sing to tell other birds where they are.

Sound waves from your voice vibrate down the string and into the cup of your partner.