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Ocean Research Vessel

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Grades 6-875-90 minSource: Creative Dad Company

Teams design a miniature sampling device that can survive being lowered into deep water, balancing the pressure it will face against the buoyancy it needs to float back up.

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

  • Design brief templatePrintinguse what you have
  • measuring cupBorrow or school hasuse what you have
  • stopwatchBorrow 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.

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 a clear section of floorBeginner-friendly

Setup

Print or hand-copy the essential prompt for Ocean Research Vessel, then set out only paper, pencils, and the common or recycled items needed for one test. Use a tabletop representation whenever the original version mentions a room, specialized device, or digital tool; the learning comes from the decisions and evidence, not elaborate scenery.

Activity

  1. Define the central success test in Ocean Research Vessel and make a paper planning sheet for the inputs, actions, and expected result.
  2. Represent the system without electronics by using labeled cards, paper controls, tokens, a ruler, or a student acting as the device; follow the same cause-and-effect rules described in the project.
  3. Run at least three cases, including one difficult or unexpected case, and record starting conditions, controlled variables, measurements, and changes over time.
  4. Revise one rule, layout, mechanism, or decision after the failed case, repeat it, and explain with the recorded evidence whether the change worked.

Ambiance video

Ambiance video coming soon from Creative Dad Studio

Done when: The group has completed Ocean Research Vessel when it can present the final device design to a research team, explaining how it balances pressure and buoyancy and point to the observation, measurement, comparison, or trial that supports its conclusion.

Materials

plastic bottles, clay or fishing weights, string, waterproof bags, large tub for water testing; Design brief template; measuring cup; stopwatch

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. Study how real ocean sampling devices handle pressure and predict what will happen to an air-filled container at depth (squeeze a bottle at the bottom of a deep tub or bucket to see it).
  2. Write a design brief with precise criteria: sinks to the bottom of the tub in 3 to 10 seconds, collects at least 20 mL of water, returns to the surface within 30 seconds, works 4 of 5 tries.
  3. List constraints: fits in a 500 mL bottle footprint, budget under $5, no loose parts that could be lost, uses only reusable or recovered materials.
  4. Cite the science: water pressure increases with depth and squeezes air spaces; an object floats when it pushes aside water weighing more than it does. Explain how each fact limits your design choices.
  5. Add an impacts section: what happens to marine life if the device or its weights are lost (litter, entanglement, lead weights), and how the device should avoid stirring up the seafloor. Turn these into constraints.
  6. Build the device and test it in a deep tub, recording sink time, sample volume, and return time each trial. Adjust weight and buoyancy to meet the criteria.
  7. Present the device to a research team with the brief and a table showing which criteria and constraints were met.

Standards mapped

  • NGSS · MS-ETS1-1

    Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions.