Production of a Gas: Controlling a Chemical Reaction

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Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles. This way, learners can alter the amount of ingredients and evaluate the amount of gas produced based on the height the foam rises in the graduated cylinder. Learners have the opportunity to design their own experiment, control variables, and test their ideas. [Activity is publicly available through a web crawler capture on Activity write-up only, images are unavailable.]

Quick Guide

Preparation Time:
5 to 10 minutes

Learning Time:
30 to 45 minutes

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

Age Range:
Ages 8 - 14

Resource Types:
Activity, Experiment/Lab Activity, Lesson/Lesson Plan


Materials List (per group of students)

  • Baking soda
  • Vinegar
  • Water
  • Liquid dish detergent
  • Graduated cylinder, 50 ml
  • ½, ¼, and 1/8 Teaspoons
  • 1 Dropper
  • 2 Small cups
  • 2 Waste containers
  • Paper towels
  • Student Activity Sheet
  • Goggles


  • Mathematics
    • Data Analysis and Probability
      • Data Analysis
      • Data Collection
    • Measurement
      • Units of Measurement
  • Physical Sciences
    • Chemistry
      • Chemical Reactions
      • Acids and Bases
    • States of Matter
      • Gases
    • Structure and Properties of Matter
      • Elements and Periodic Table
      • Elementary Particles and Nuclear Physics
  • The Nature of Science
    • The Scientific Process
      • About Inquiry
      • Asking Questions
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations
      • Communicating Results


To use this activity, learners need to:

  • see
  • read
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


Components that are part of this resource:

This resource is part of:

Access Rights:

  • Free access


  • Kessler, James H. ; Galvan, Patricia M.


  • All rights reserved, American Chemical Society, 2007