Neutralizing Acids and Bases

Add to list Go to activity
Learners use their knowledge of color changes with red cabbage indicator to neutralize an acidic solution with a base and then neutralize a basic solution with an acid. Use this as a follow-up activity to the related activity, "Color Changes with Acids and Bases." [Activity is publicly available through a web crawler capture on Archive.org. Activity write-up only, images are unavailable.]

Quick Guide

Preparation Time:
5 to 10 minutes
Learning Time:
10 to 30 minutes
Estimated Materials Cost:
1 cent - $1 per group of students
Age Range:
Ages 6 - 14
Resource Types:
Activity, Experiment/Lab Activity
Language:
English

Materials List (per group of students)

  • Red cabbage leaves
  • Cream of tartar
  • Powdered laundry detergent
  • Water
  • Zip-closing plastic bag (quart-size, storage-grade)
  • 4 Clear plastic cups
  • 2 Small cups
  • 4 Toothpicks
  • 1 Tablespoon
  • Permanent marker
  • White piece of paper
  • Student Activity Sheet

Keywords

Subjects

  • Physical Sciences
    • Chemistry
      • Chemical Reactions
      • Acids and Bases
  • The Nature of Science
    • The Scientific Process
      • Asking Questions
      • Conducting Investigations
      • Formulating Explanations

Informal Categories

  • Food and Cooking

Audience

To use this activity, learners need to:

  • see
  • see color
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other

Components that are part of this resource:

Access Rights:

  • Free access

By:

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

Rights:

  • All rights reserved, American Chemical Society, 2007