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ScienceMathArt

Wave Wavelength Watercolors

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Grades 6-890-120 minSource: Creative Dad Company

Students measure real wavelength and frequency in a rope or slinky wave and use math to find wave speed. Then they turn what they saw into a watercolor painting built entirely from that data.

Budget levels

Amazon prices checked Oct 9-10, 2026 and may change

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 noted separately.

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

  • Meter stick or tape on the floor for measuring amplitudeBorrow or school hasuse what you have
  • paper cupsBorrow or school hasuse what you have
  • graph paperBorrow or school hasuse what you have

Full Experience

Required materials for the class.

$0 per class (class of about 30, 6 groups).

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, with every optional item included.

$0 per class (class of about 30, 6 groups).

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.

Materials

Rope or slinky; Meter stick or tape measure; Timer; Watercolor paint, brushes and paper; Meter stick or tape on the floor for measuring amplitude; paper cups; graph paper

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

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

  • Rope or slinky

    Rope or slinky

    No link

  • Measuring tape

    Meter stick or tape measure

    Shop

  • Stopwatch timer

    Timer

    Shop

  • Watercolor paint, brushes and paper

    Watercolor paint, brushes and paper

    No link

  • Paper Cups

    paper cups

    Shop

Steps

  1. Make a steady wave in the rope or slinky and predict how wavelength will change if you shake it faster.
  2. Measure wavelength (distance between crests with a meter stick) and frequency (crests passing a point per second), and calculate wave speed.
  3. Repeat at a faster shaking rate and compare wavelength, frequency, and speed in a table.
  4. Keep the same rate but use 3 shake sizes. Measure amplitude (crest height from the rest line) for each. Measure the energy delivered by placing an empty paper cup at the far end of the rope and recording how far the wave pushes it (average of 3 trials).
  5. Make a table and graph of push distance versus amplitude, describe the pattern, and write a statement using the graph: the larger amplitude wave delivered more energy.
  6. Paint a watercolor piece where brushstroke spacing matches the measured wavelength and color strength matches amplitude, with a data key and the amplitude and energy graph on the back.

Standards mapped

  • NGSS · MS-PS4-1

    Use mathematical representations to describe a simple model for waves that includes how the amplitude of a wave is related to the energy in a wave.