What this lesson teaches
This activity illustrates the separation of pigments in inks, teaching how different colors can be isolated. By observing color separation, children grasp fundamental chemistry concepts and the properties of materials.
Science in Action
Can you finish rainbow paper chromatography in about 30 min?
Rainbow Paper Chromatography
You will this activity illustrates the separation of pigments in inks, teaching how different colors can be isolated.
Duration30 min
Age GroupAges 11–12
DifficultyBeginner
SubjectScience
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The learning connection
Chromatography engages children through visual exploration and hands-on experimentation. By manipulating simple materials to separate colors, they witness the principles of solubility and molecular interactions in a manageable and exciting way, enhancing understanding through embodied cognition.
Try it with your learner
1. Cut coffee filter paper into a circle about 10 cm in diameter. 2. Draw a dot with a black marker in the center of the filter. 3. Fill a small bowl with water (2 cm high). 4. Carefully place the filter paper in the water, dot side up, ensuring it doesn't touch the bottom. 5. Watch as the colors spread and separate — take notes on what you see! 6. Let it dry and share your rainbow results with family!