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ScienceArt

Rainbow Density Tower & Liquid Art

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Grades K-230-45 minSource: Creative Dad Company

Kids layer honey, dish soap, water, and oil to build a striped density tower, then paint their own 'density rainbow' to explain why the liquids don't mix.

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Every level teaches the same core idea — pick the one that fits your time, budget, and energy today.

Prep: 10 minActivity: 30 min1 session~$4/groupOne table or clear floor areaBeginner-friendly

Setup

Gather only common or recycled items needed to slowly pour each liquid down the side of the jar, one at a time, without stirring. Place the materials beside a simple recording sheet or blank paper, and prepare the Rainbow Density Tower & Liquid Art challenge in one working area; no digital device is needed.

Activity

  1. Line up the liquids from heaviest (honey) to lightest (rubbing alcohol) and predict the order.
  2. Slowly pour each liquid down the side of the jar, one at a time, without stirring.
  3. Observe and sketch the layers that form, labeling each liquid.
  4. Paint a watercolor 'rainbow' showing the same layered order and explain in one sentence why each liquid stayed separate.

Done when: The learner completes Rainbow Density Tower & Liquid Art after carrying out this core test: Observe and sketch the layers that form, labeling each liquid. The learner then uses that result to complete the final task: Paint a watercolor 'rainbow' showing the same layered order and explain in one sentence why each liquid stayed separate.

Materials

Honey, dish soap, water, vegetable oil, rubbing alcohol, food coloring, a tall clear jar, watercolor paper, paint

Shown for the Quick Start version — switch tabs above to see what changes.

Disclosure: Materials links below go to Amazon. As an Amazon Associate, Creative Dad Company earns from qualifying purchases at no extra cost to you.

Steps

  1. Line up the liquids from heaviest (honey) to lightest (rubbing alcohol) and predict the order.
  2. Slowly pour each liquid down the side of the jar, one at a time, without stirring.
  3. Observe and sketch the layers that form, labeling each liquid.
  4. Paint a watercolor 'rainbow' showing the same layered order and explain in one sentence why each liquid stayed separate.

Standards it satisfies

  • NGSS · K-PS2-1

    Plan and conduct an investigation to compare the effects of different strengths or directions of pushes and pulls on the motion of an object.

  • Florida · SC.K.N.1.1

    Collaborate with a partner to collect information through observation and use the five senses to compare characteristics of objects.

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