This is for a science project. I plan to show how different amounts of weight can affect the shell. I need some facts about the shell ingredients and how they make the egg strong. The shell helps to prevent bacterial infection in the developing chicken embryo. Factors such as molecule size determine what gets out and what doesn't.
Semipermeable membranes make up everything from cell membranes to dialysis bags.
For a neat experiment, put a small piece of potato in distilled water overnight. The chicken needs calcium, phosphorus, manganese, Vitamin D and other vitamins and minerals. If the diet isn't proper, the egg will not be viable - its shell will be thin or soft or there may not be a shell at all. Try it with the eggs on end and on their side. Copyright 1998-1999, Room103 group.