Where does sound come from?

What is an example of using sound to communicate and solve a problem?

Which device uses sound to communicate over a distance?

Police cars, fire trucks, and ambulances use sirens to communicate their location to other drivers. Which device below would let you communicate your location with other people using sound?

Reina has to design a device that uses sound to communicate over a distance. Her teacher lets them start by picking one object. Which object would be the best for Reina to choose to communicate over a distance?

If you were to design a device using sound to communicate over a distance, which would be MOST important to consider when building it?

Sadie has to design a device that uses sound to communicate over a distance. She comes up with what she thinks is a great idea.

How could she test her design?

Jean's teacher gives each group of students a drum and tells them they need to find a way to answer questions without speaking. They get ten minutes to plan. Their plans are listed below.

Group 1: They write a simple plan for ways to answer the question = 1 bang for "Yes," 2 bangs for "No," 3 bangs for "Repeat," and 4 bangs for "I don't know."

Group 2: They will nod or shake their heads to answer the questions and bang the drum to celebrate getting a question right

Which group's plan best follows the teacher's instructions?

Asking questions, making observations, and gathering information can be helpful when thinking about designing a device.

What makes sounds?