how to make rain water harvesting working model – innovative – inspire award winning model science

In this article post we write about making of the innovative rain water harvesting working model on how we can save water in the garden or agriculture lands by using simple harvesting concepts

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Creating a rainwater harvesting working model using simple materials like plastic funnels, trays, a DC water pump, and a 9V battery can be a practical and educational project.

Here’s how you can build it:

Materials Needed

  • Plastic funnel
  • Plastic trays (2)
  • DC water pump
  • 9V battery
  • Flexible plastic tubing
  • Cardboard or wooden base
  • Glue or tape
  • Scissors
  • Marker or pen
  • Small stones or gravel (optional, for filtration)

Video Guide Step By Step rain water harvesting working model – innovative

1. Prepare the Base and Trays

  1. Base Preparation:
    • Start with a sturdy cardboard or wooden base. This will serve as the foundation for your model.
  2. First Tray (Collection Tray):
    • Place the plastic funnel on one end of the base. Ensure the funnel opening is wide enough to collect rainwater effectively.
    • Direct the funnel into the first plastic tray to collect rainwater efficiently.
  3. Second Tray (Storage Tray):
    • Place another plastic tray beside the first one. This will store the collected rainwater before it is pumped out.

2. Set Up the Water Pump System

  1. Attach the Water Pump:
    • Position the DC water pump inside the second tray (storage tray). Ensure the pump is placed at the bottom to maximize water extraction.
  2. Connect the Tubing:
    • Attach one end of the flexible plastic tubing to the outlet of the water pump.
    • Extend the other end of the tubing out of the tray, which will simulate watering the garden.

3. Install the Battery and Pump Mechanism

  1. Battery Placement:
    • Secure the 9V battery to the base or nearby structure. Ensure it is easily accessible for powering the water pump.
  2. Connect the Pump to the Battery:
    • Connect the wires from the water pump to the terminals of the 9V battery. Use tape or connectors to ensure a secure connection.

5. Testing and Operation

  1. Simulation:
    • Place the rainwater harvesting model outdoors or under a controlled water source (such as a dripping faucet) to simulate rainwater collection.
    • Ensure the funnel is positioned correctly to capture water efficiently into the collection tray.
  2. Powering the Pump:
    • Activate the water pump by connecting the battery. Observe as the pump draws water from the storage tray (second tray) through the tubing, simulating irrigation for a garden or plants.

By following these steps, you can create an effective rainwater harvesting working model that demonstrates the process of collecting and utilizing rainwater for practical purposes like garden irrigation.

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