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Green Pennies

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    The Tech Interactive

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Green Pennies

In this activity, learners create their own experiment and test which of 4 mixtures of household chemicals turn pennies green over 5 days. This is a great introduction to basic chemical reactions, experiments, and the scientific process. Includes step-by-step instructions, observation & lab journal worksheets, and suggested activity extensions.

Quick Guide

Preparation Time:
10 to 30 minutes

Learning Time:
1 to 7 days

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

Age Range:
Ages 8 - 14

Resource Types:
Activity, Experiment/Lab Activity


Materials List (per group of students)


  • Physical Sciences
    • Chemistry
      • Chemical Reactions
      • Acids and Bases
      • Oxidation-Reduction Reactions

Informal Categories

  • Science Festivals Activity


Components that are part of this resource:

This resource is part of:

Access Rights:

  • Free access



  • The Tech Interactive, 2020