Gas Production: Blow up a balloon!

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In this classic reaction, learners baking soda and vinegar in a soda bottle to produce carbon dioxide (CO2) gas. This gas inflates a balloon. This lesson addresses properties of gases, and characteristics of a chemical reaction. This activity, located on page 2 of the PDF, is one of three activities in the Take Home guide for the Chemical Reactions unit in OMSI's Chemistry Lab. Also included on the PDF are two additional activites: Cloudy Globs and Glow Fast, Glow Slow.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
$1 - $5 per student

Age Range:
Ages 6 - 14

Resource Types:
Activity, Experiment/Lab Activity


Materials List (per student)

  • baking soda
  • tablespoon measure
  • one plastic bottle (1-liter or 20-ounces)
  • small cup
  • vinegar
  • funnel
  • one large balloon (8" or 9" size)


  • Physical Sciences
    • Chemistry
      • Chemical Reactions
    • States of Matter
      • Gases


To use this activity, learners need to:

  • see
  • hear
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access



Funding Source:

  • National Science Foundation