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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.

Budget levels

Materials list coming soon to members

Materials links go to Amazon. Prices are estimates and may change. As an Amazon Associate, Creative Dad Company earns from qualifying purchases.

Quick Start

Digital downloads only. $0 to buy. Printing is noted separately.

Materials list coming soon.

Student time: one class period, one day.

Teacher prep / build-ahead: separate from student time.

Scale it

The default plan is one class period on a single day.

Scale back: Fit it into a shorter period, use fewer effects, or run a demo instead of a build.

Scale up: Add one extra effect, or spread the share-out across another day.

Ambiance video

Ambiance video coming soon from Creative Dad Studio

Full Experience

Up to $25 per class (class of about 30, 6 groups).

Materials list coming soon.

Student time: one day.

Teacher prep / build-ahead: separate from student time.

Scale it

The default plan is one school day.

Scale back: Fit the build into one period with fewer effects.

Scale up: Spread the work across days, or add more effects.

Total Transformation

The bigger kit, priced per class (class of about 30, 6 groups).

Materials list coming soon.

Student time: one day (one session, one-day event).

Teacher prep / build-ahead: separate from student time.

Scale it

The default plan is one session, a one-day event.

Scale back: Shorten the event, or run a demo for a smaller audience.

Scale up: Spread the build and the event across days, or invite a bigger audience.

Choose your version

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

Student time: 30 min, one class periodTeacher prep / build-ahead: 10 min$0 to buy. Printing noted separately.One 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.

Ambiance video

Ambiance video coming soon from Creative Dad Studio

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.

Materials links go to Amazon. Prices are estimates and may change.

As an Amazon Associate, Creative Dad Company earns from qualifying purchases.

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 mapped

  • 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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