How to make water borne diseases working model for science project exhibition – diy

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This model shows how contaminated water causes several dangerous diseases. As the platform rotates, it displays different water borne diseases like Cholera, Typhoid, Hepatitis A, etc.

Materials Needed:

  • Cardboard sheet (for base and rotating disc)
  • Thick straw or small PVC pipe (for central rotating rod)
  • Skewer stick / Metal rod (to rotate the base)
  • Color papers (blue, white, etc.)
  • Printouts / Handmade drawings of water borne diseases (like Cholera, Typhoid, Diarrhea, Hepatitis A, Dysentery, etc.)
  • Glue, Fevicol, Scissors
  • Sketch pens/Markers (for labeling)
  • Small DC motor (optional, if you want automatic rotation)
  • 9V battery and switch (if using motor)
  • Decorative materials (optional, like cotton for clouds, blue sheet for river, etc.)

Step-by-Step Video Instructions:

  1. Prepare the Base:
    • Cut a large round circle from a strong cardboard sheet (around 25–30 cm diameter).
    • Decorate the base with blue color paper to symbolize water.
  2. Create the Rotating Platform:
    • Take another smaller round cardboard (20 cm) — this will rotate.
    • Fix a central straw/PVC pipe vertically on the large base (fixed firmly).
    • Insert a skewer stick or metal rod through the small cardboard disc’s center, and pass it through the straw.
    • Now, your top disc will rotate manually (or by a small motor if you want).
  3. Design the Disease Sections:
    • Divide the rotating disc into equal sections (like a pie chart).
    • In each section, stick:
      • Name of the water-borne disease
      • Cause (contaminated water, poor sanitation)
      • Symptoms
      • Prevention tips
      • Small diagram or illustration
    Example:
    • Cholera: Severe diarrhea, dehydration — caused by Vibrio cholerae — Prevent: drink boiled water.
    • Typhoid: High fever, weakness — caused by Salmonella typhi — Prevent: eat hygienic food.
  4. Add Title and Labels:
    • On the top of the base, add a large title “Water Borne Diseases”.
    • Label the fixed base as “Contaminated Water Source” (you can add drawings of dirty rivers, tanks).
  5. (Optional) Add Motor:
    • If you want auto-rotation, connect a slow-speed DC motor below the rotating disc, attached to a 9V battery and switch.
  6. Final Decoration:
    • Use cotton to show clouds ☁️.
    • Stick cutouts of factories discharging waste into water.
    • Show houses, water tanks, or wells affected.

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