![](https://images-assets.nasa.gov/image/iss040e086653/iss040e086653~large.jpg?w=1920&h=1275&fit=clip&crop=faces%2Cfocalpoint)
Audience
Students
Grade Levels
Grades K-4, Grades 5-8
Subject
Physical Science, Waves, Flight and Aeronautics, Sound
Type
Hands-on Activities
In this activity, you will see how sound waves can be focused to increase the volume of noise. This is done by building a screaming string device with a plastic cup.