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What Makes Flatulence

Source Institutions

    American Society for Microbiology

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What Makes Flatulence

Learners recreate the digestion process that takes place within their large intestines. They mash up bananas into mush, then place it in an Erlenmeyer flask covered with a balloon. Learners observe the banana for three to five days, and watch as gas is produced which inflates the balloon.

Quick Guide

Preparation Time:
5 to 10 minutes

Learning Time:
1 to 7 days

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

Age Range:
Ages 8 - 14

Resource Types:
Activity, Experiment/Lab Activity


Materials List (per group of students)


  • Life Sciences
    • Diversity of Life
      • Viruses and Bacteria
      • Protists and Fungi
    • Human Body
      • Digestion
      • Health and Nutrition
  • The Nature of Science
    • The Scientific Process
      • Asking Questions
      • Conducting Investigations


To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


Components that are part of this resource:

Includes alignment to state and/or national standards

Access Rights:

  • Free access


  • Gilbert, Ph.D., Andrew; Meilander, Ph.D., Tracy; Helfinstine, Ph.D., Shannon; Woolverton, Ph.D., Christopher J.


  • All Rights Reserved, American Society for Microbiology, ©2012


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