Rainbow in a Jar

Layer sugar water of different densities and colors in a jar to create a rainbow. Teaches density and layering.

STEM
AgeAges 5–12
Duration30 min
DifficultyMedium
CostLow
LocationIndoor

Educational Value

Demonstrates density and liquid layers.

Materials Needed

Prep progress

Step-by-Step Instructions

  1. 1

    Make 4–5 solutions with different amounts of sugar and colors.

  2. 2

    Carefully pour the densest (most sugar) first.

  3. 3

    Layer the next color over the back of a spoon.

  4. 4

    Observe how the layers stay separate.

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