how to make day and night working model for science exhibition – simple and easy – innovative | howtofunda

In this post I will providing the details on how to make day and night working model for science exhibition in simple and easy way

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Creating a day and night working model to demonstrate the time difference between the USA and India, along with national flags and houses, can be an engaging and educational project. Here’s a step-by-step guide to help you set it up:

Materials Needed:

  1. Large Display Board or Base: To mount the entire model.
  2. Two Small Clocks: One set to the time in the USA and the other to the time in India.
  3. Miniature Houses: Two sets to represent typical houses in the USA and India.
  4. National Flags: Small flags of the USA and India.
  5. LED Lights: To represent day and night.
  6. Small Motors and Gear Assembly (optional): To rotate the display to show day and night cycles.
  7. Battery Pack or Power Supply: To power the lights and any motors.
  8. Cardboard, Paint, and Craft Materials: For creating the scenery and houses.
  9. Markers and Labels: To label the countries and times.
  10. Glue and Tape: To assemble the model.

Step by Step video Instructions on making day and night working model:

1. Set Up the Base:

  • Use a large display board or base to mount your model.
  • Divide the base into two sections: one for the USA and one for India.

2. Create the Scenery:

  • Use cardboard and craft materials to create miniature houses typical of the USA and India. Paint and decorate them appropriately.
  • Place the houses on their respective sides of the display board.

3. Install the National Flags:

  • Place small flags of the USA near the American houses and Indian flags near the Indian houses.

4. Set Up the Clocks:

  • Install two small clocks on the display board. Set one clock to the current time in the USA and the other to the current time in India. Label them clearly.

5. Set Up the LED Lights:

  • Install LED lights above each section. Use white or yellow LEDs to represent day and blue or dim LEDs to represent night.
  • Connect the LEDs to a power source.

6. Automate the Day-Night Cycle :

  • If you want to show the transition between day and night, use small motors and a gear assembly to rotate a disc or partition that alternates between a transparent (day) and opaque (night) section over the houses.
  • Connect the motor to a timer or switch to control the rotation.

7. Power the Model:

  • Connect the LED lights and any motors to a battery pack or power supply. Ensure safe wiring and secure connections.

8. Label the Model:

  • Use markers and labels to clearly mark the USA and India sections. Include labels for the times shown on the clocks.


This model can be used to explain time zones, the Earth’s rotation, and the cultural differences between the USA and India. It’s an excellent project for school presentations or as an educational tool at home.

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