In this post article we have given instruction on how to make the kidney working model with stand for science fair exhibition using cardboard and waste materials
Creating a kidney working model using a plastic bottle and pipes on a cardboard base is an excellent way to demonstrate the basic functions of a kidney in a simplified manner.
The model will show how the kidney filters waste from the blood and produces urine.
Here’s a step-by-step guide to making the model:
Materials you will need:
- Plastic bottle (500 ml or 1-liter size)
- Straws or small pipes (transparent if possible)
- Cardboard (large piece for the base)
- Glue or adhesive putty
- Food coloring (optional, for visualization)
- Prepare the base:
- Take a large piece of cardboard to serve as the base for your kidney model.
- Create the kidney structure:
- Take the plastic bottle and cut it in half, horizontally. The bottom half of the bottle will represent the kidney.
- Use scissors to cut a hole in the bottom of the bottle, where the neck of the bottle used to be. This hole will serve as the ureter, the tube that carries urine from the kidney to the bladder.
- Attach the ureter:
- Take a straw or small pipe and attach it to the hole at the bottom of the bottle using glue or adhesive putty. This represents the ureter.
- Create the blood vessels:
- Attach several straws or small pipes to the sides of the bottle, representing the blood vessels that supply and drain blood from the kidney. These tubes will be in contact with the interior of the bottle.
- Simulate blood flow:
- Pour water with a few drops of food coloring (optional) into the bottle. This colored water represents blood.
- Make sure the water fills the blood vessels and comes into contact with the interior of the bottle.
- Demonstrate filtration:
- Tilt the bottle slightly to one side. This action simulates the filtering process in the kidney, where waste products and excess water are filtered from the blood.
- Allow the filtered water (urine) to flow through the ureter (straw or pipe) into a separate container (representing the bladder).
- Optional: Add labels and explanations:
- You can add labels to the model to identify the different parts of the kidney, such as the renal artery, renal vein, nephrons, and collecting ducts.
- Include explanations for each part and how the kidney functions in the filtration and production of urine.
This model provides a simple and visual representation of how the kidney filters blood and produces urine. It’s a fun and educational project to understand the basic functions of one of the vital organs in the human body.
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