STEM scholars investigate sound attenuation by conducting an experiment in which they compare the farthest distance that they can hear a sound with and without ear protection.

Concepts

sound waves, sound energy, technology resources

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Instructional Ideas

• Have the class create a graphic organizer that distinguishes between objective and subjective data

Classroom Considerations

• Experiment requires materials such as ear protectors and various sound sources (radio, buzzer, etc.)
• Learners need to be able to analyze data, such as considering averages and spread of data

Pros

• Includes a list of activities individuals can do at home

Cons

• Scholars are already likely to know how ear protectors affects hearing