Rainwater harvesting is the process of collecting, storing, and using rainwater for agricultural purposes. It helps in water conservation, groundwater recharge, and irrigation during dry seasons.
This DIY working model will demonstrate how rainwater is collected, stored, and reused for irrigation using a DC water pump and a 9V battery.
Materials Required:
- Cardboard base (for setup)
- Funnels (to simulate rain and collect water)
- DC water pump (for lifting water)
- 9V battery (to power the pump)
- Plastic bottle or container (as a water well)
- Small tubes/pipes (for water flow)
- Artificial grass or crop cutouts (for fields)
- Wires and switch (to control the pump)
Steps to Make the Model:
1. Setting Up the Rain Simulation
- Attach a funnel at the top to simulate rain.
- Connect it to a small pipe leading to the water well (container) to collect the rainwater.
2. Storing Water in a Well
- Use a plastic bottle or small container as a water well.
- The funnel will channel water into this well, representing rainwater collection.
3. Pumping Water to Fields
- Place a DC water pump inside the well.
- Connect it to a 9V battery and a switch.
- Use a small pipe to direct water from the well to the fields.
4. Watering the Agriculture Fields
- Use artificial grass or paper crops to represent fields.
- The water pump will distribute water to the fields when the switch is turned on.
How It Works:
- Pour water into the top funnel to simulate rainfall.
- The water flows into the well (storage tank).
- When the DC pump is activated, it lifts water from the well and sprinkles it onto the fields.
- This demonstrates efficient rainwater harvesting and irrigation.
This interactive model is a great way to showcase sustainable water management in agriculture.