What can you use for kidneys on a 3d science project?

Answer 1

First, do your research on Renal function!Create your display background and stand (like for a diorama).

Using modeling clay, create a kidney as if cut in half lengthwise to expose the interior anatomy. Don't forget the Renal Artery and Vein and the ureter.

Sculpt out the calyces and other parts. Into the kidney, thread a piece of tubing from the the renal artery. The tubing will not be visible inside the kidney model, but will exit inside the sculpted ureter (leave ends open).

Dry or bake at 110 degrees per directions so you do not melt the tubing! Let cool.

Paint the parts to match the best illustrative picture you can find. Let dry then attach it to the display and label everything.

Use a piece of tubing attached to a large syringe (like for basting). have a Clamp on the lower end. Fill the syringe with water. You will not see it as it will be attached behind the display.

At the bottom, use a small bag or jar to represent the bladder. in the bottom half of the tube (a j loop inside the kidney model), add yellow food coloring so that when you demonstrate your renal function and explain it you can produce signature yellow urine. Be sure to explain that the yellow actually comes from the broken down red blood cells and is tinted by residual bilirubin (darker with dehydration, virtually clear when well hydrated).

Your details and layout on the presentation board and ability to explain renal function is the important part. The "working demo" is more for an extra five points of fun :)