What this lesson teaches
This activity illustrates the concept of density by layering liquids of different weights. Children learn that liquids can stack instead of mixing, revealing how substances vary in density.
Science in Action
Can you finish density layers in a jar in about 25 min?
Density Layers in a Jar
You will this activity illustrates the concept of density by layering liquids of different weights.
Duration25 min
Age GroupAges 11–12
DifficultyAdvanced
SubjectScience
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How the activity runs
The learning connection
By visually observing the separation of liquids, children can connect abstract scientific principles to tangible outcomes. This aligns with Vygotsky's scaffolding, as they build on existing knowledge of liquids through hands-on experimentation.
Try it with your learner
1. Gather 5 clear glasses with different colored liquids: honey, dish soap, water, oil, and alcohol. 2. Carefully pour honey into the first glass until it's half full. 3. Slowly drizzle dish soap over the honey to create a layer. 4. Gently add colored water on top of the dish soap to create another layer. 5. Add oil carefully, ensuring each layer remains separate. 6. Finally, pour alcohol on top and observe the rainbow effect. What do you see?