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In this chemistry activity, learners will learn how to make their own pH indicator using cabbage leaves, and then test common household items with their homemade indicator. This is an excellent activity to show how science can often be done with everyday objects.
- 10 to 30 minutes
- 10 to 30 minutes
- $5 - $10 per group of students
- Ages 14 - 18
- Activity, Experiment/Lab Activity
- English
Quick Guide
Materials List (per group of students)
- 3 Purple Cabbage leaves
- 6 clear cups
- Warm water
- Spoons
- 1 tsp. of clear soda
- 1 tsp. of lemon juice
- 1 tsp. of window cleaner
- 1 tsp. of white vinegar
- 1 tsp. of powdered laundry detergent
- 1 tsp. of baking soda
Subjects
-
Life Sciences
-
Diversity of Life
- Plants
-
Diversity of Life
-
Physical Sciences
-
Chemistry
- Chemical Reactions
- Acids and Bases
- Chemistry of Life
-
Chemistry
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
Includes alignment to state and/or national standards:
This resource is part of:
Access Rights:
- Free access
By:
Source Collection
- COSI classroom and online activities
Rights:
- All rights reserved, COSI Columbus, 2009