Fizzy Foam Fun

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In this activity, learners create a colorful foam fountain by adding yeast to a chemical reaction. This activity introduces chemical reactions to young learners and teaches the concept of catalysts. Activity includes step-by-step instructions, questions to engage learners, and an explanation of the science behind the activity. This activity uses low cost materials and can be done at home. Safety notice: This activity uses hydrogen peroxide-do not use solutions of hydrogen peroxide greater than 6% concentration.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
$5 - $10 per group of students

Age Range:
Ages 4 - 11

Resource Type:


Materials List (per group of students)

  • 1 (one) 20oz ounce bottle- rinsed out and dry
  • Dish soap
  • Food coloring
  • ¼ cup warm water
  • Small bowl
  • Funnel (or make one by rolling a sheet of paper)
  • Large rectangular baking pan (to contain mess)
  • Measuring cup
  • ½ cup hydrogen peroxide, 3% or 6% solution *Do not use solutions greater than 6%
  • 1 packet active dry yeast
  • Optional: Additional 20 oz bottles of both 3% and 6% hydrogen peroxide can be used to make the project more challenging.


  • Physical Sciences
    • Chemistry
      • Chemical Reactions


This resource is part of:

Access Rights:

  • Free access


Source Collection

  • 4-H STEM Lab


  • All rights reserved, 4-H, 2020

Funding Source:

  • HughesNet