how to make respiratory system lung model for science exhibition project

In this blog post we have written enough details on how to make the respiratory system lung model for science exhibition project using cardboard waste materials at home easily

respiratory system lung model for science exhibition project
respiratory system lung model for science exhibition project

Creating a respiratory system model using cardboard and color paper is a great way to understand and visualize how the respiratory system works. This interactive model will allow you to open different parts to see the details inside the respiratory organs.

Here’s a step-by-step guide to making this model:

Materials Needed:

  1. Cardboard: For the base and structure.
  2. Color Paper: For decorating and detailing the organs.
  3. Glue: For assembling the model.
  4. Scissors and Craft Knife: For cutting the cardboard and paper.
  5. Markers, Paint, or Colored Pencils: For labeling and adding details.
  6. Ruler: For measuring and drawing.
  7. Brads (paper fasteners): For creating movable parts.
  8. String or Thin Thread: To represent the trachea and bronchi.

Video Guide on respiratory system lung model for science exhibition project

1. Prepare the Base:

  • Cut a large rectangular piece of cardboard to serve as the base for your model.
  • Optionally, cover the base with color paper or paint it for a more polished look.

2. Create the Outline of the Respiratory System:

  • Draw a basic outline of the respiratory system on the cardboard base. Include the nasal cavity, trachea, bronchi, lungs, and diaphragm.

3. Create the Nasal Cavity and Mouth:

  • Cut out shapes for the nasal cavity and mouth from cardboard.
  • Cover these shapes with color paper. Use red or pink for the mouth and nasal cavity.
  • Attach these shapes to the top of your base.

4. Create the Trachea:

  • Use a piece of string or thin thread to represent the trachea.
  • Glue the string from the bottom of the nasal cavity down to where the bronchi will branch off.
  • Alternatively, you can cut a narrow strip of cardboard, cover it with color paper, and use it as the trachea.

5. Create the Bronchi and Bronchioles:

  • Use string or thin thread to represent the bronchi branching off from the trachea into the lungs.
  • For the bronchioles, you can use smaller pieces of string branching off from the bronchi.

6. Create the Lungs:

  • Cut out two lung shapes from cardboard. Make them slightly larger than needed, as you will cut them open later to show the interior details.
  • Cover the lungs with color paper. Use light pink or a similar color.
  • Attach the lungs to the base on either side of the bronchi.

7. Create the Diaphragm:

  • Cut out a curved shape from cardboard to represent the diaphragm.
  • Cover it with color paper and attach it to the bottom of the lungs.

8. Create Flaps to Show Inside Details:

  • Cut openable flaps on the lung shapes to show inside details such as the alveoli.
  • Cut smaller lung shapes from cardboard to fit inside the flaps. These will represent the internal view of the lungs.
  • Cover these smaller lung shapes with color paper and draw details like alveoli using markers or paint.
  • Attach these smaller lung shapes inside the flaps using glue.

9. Add Details and Labels:

  • Use markers or paint to add details such as blood vessels around the alveoli.
  • Label all parts of the respiratory system clearly with markers or printed labels.

10. Assemble and Add Final Touches:

  • Ensure all parts are securely attached and that the flaps open and close easily.
  • Add any additional details or decorations to make your model more informative and attractive.


This model of the respiratory system is a great educational tool to visualize how the respiratory organs work and their internal structures. It’s perfect for a school project or a science fair, allowing for an interactive way to learn and teach the respiratory system. Enjoy building and presenting your model!

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