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In this chemistry activity, learners will test the pH of various foods and household substances using cabbage. They will explore the concept of acidic and basic chemicals, learn that pH is a common measure of acidity, and explore various common uses of acids and bases.
- 5 to 10 minutes
- 10 to 30 minutes
- $5 - $10 per group of students
- Ages 8 - 11
- Activity, Experiment/Lab Activity
- English
Quick Guide
Materials List (per group of students)
- 1 head of red or purple cabbage
- 1 gallon very warm water
- Craft sticks
- Kitchen chemicals to test, such as lemon juice, baking soda, window cleaner, clear soda pop, vinegar
- Pipettes or droppers
- Small cups
Subjects
-
Physical Sciences
-
Chemistry
- Acids and Bases
-
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:
Access Rights:
- Free access
By:
Rights:
- All rights reserved, COSI Columbus, 2009