Sounds of the Heart

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In this activity, learners will investigate the sounds of the heart. Learners construct two stethoscopes, one out of paper and another made from vinyl tubing and a plastic bottle, and investigate the workings of valves. [Activity is publicly available through a web crawler capture on]

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
30 to 45 minutes

Estimated Materials Cost:
$1 - $5 per group of students

Age Range:
Ages 6 - 14

Resource Types:
Activity, Lesson/Lesson Plan


Materials List (per group of students)

  • 20-ounce plastic bottles (pop bottle)
  • 60 cm length of vinyl tubing per student
  • stethoscope
  • plastic cup with small amount of rubbing alcohol
  • cotton balls
  • masking tape
  • paper
  • scissors
  • craft knife (for teacher's use only)


  • Life Sciences
    • Human Body
      • Circulation
  • Physical Sciences
    • Vibration and Waves
      • Sound


To use this activity, learners need to:

  • see
  • read
  • hear
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access



  • All rights reserved, Science Museum of Minnesota, 2000

Funding Source:

  • Medtronic Foundation