What this lesson teaches
This activity shows how pH affects color in natural indicators. Children learn that acids and bases can change the hue of a substance, connecting chemistry to nature.
Science in Action
Can you finish cabbage color chemistry in about 30 min?
Cabbage Color Chemistry
You will this activity shows how pH affects color in natural indicators.
Duration30 min
Age GroupAges 15–16
DifficultyAdvanced
SubjectScience
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How the activity runs
The learning connection
Using embodied cognition, children create their own pH indicators, allowing them to visualize and experience chemical reactions first-hand. This tangible interaction reinforces understanding of acid-base chemistry through observation and experimentation.
Try it with your learner
1. Chop a handful of red cabbage and place it in a pot. 2. Add 2 cups of water and boil for 10 minutes until the water turns purple. 3. Strain the cabbage juice into a clear container. 4. Prepare small dishes with lemon juice, baking soda solution, soap water, and vinegar. 5. Pour a spoonful of cabbage juice into each dish and observe the color change. 6. Record the colors and identify which solutions are acidic or basic!