Stereo Sound

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We listen to stereo music systems, tv's, and radios because it simulates being where the sound originates. Sound is simply arriving at one ear before the other and you instinctively know its direction. Use a tube and a pencil to simulate a simple stereo effect.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
Under 5 minutes

Estimated Materials Cost:
free per student

Age Range:
Ages 4 - 14

Resource Type:


Materials List (per student)

  • One 3-foot (1-meter) length of hose measuring 1 inch (2.5 centimeters) or more in diameter (pool/spa hose shown in photo works well)
  • A pencil
  • A partner


  • Life Sciences
    • Human Senses and Perception
      • Hearing
      • Perception
  • Physical Sciences
    • Vibration and Waves
      • Sound


This resource is part of:

Access Rights:

  • Free access