Ziptop Bag Chemistry

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In this chemistry activity, learners perform three chemical reactions in a sealed zip-top bag. Learners will record their observations and classify the changes as chemical or physical. This resource includes questions for answers to help learners interpret their observations and better understand chemical reactions. The answers to these questions are included on the resource guide. [Activity is publicly available through a web crawler capture on Archive.org.]

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
10 to 30 minutes
Estimated Materials Cost:
$1 - $5 per student
Age Range:
Ages 8 - 18
Resource Types:
Activity, Experiment/Lab Activity
Language:
English

Materials List (per student)

  • 4 ziptop bags
  • 1 Tbsp. calcium chloride
  • 2 Tbsp. sodium hydrogencarbonate or 2 Tbsp. baking soda
  • 30 mL water
  • 35 mm film canister (top optional) or 1 small paper cup of water
  • 30 mL indicator solution (phenol red) or 30 mL red cabbage juice

Keywords

Subjects

  • Mathematics
    • Data Analysis and Probability
      • Data Analysis
      • Data Collection
  • Physical Sciences
    • Heat and Thermodynamics
      • Thermodynamics and Entropy
    • Chemistry
      • Chemical Reactions
      • Acids and Bases
    • States of Matter
      • Gases
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations
      • Communicating Results

Informal Categories

  • Food and Cooking

Audience

To use this activity, learners need to:

  • see
  • see color
  • read
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other

This resource is part of:

Access Rights:

  • Free access with registration

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