What you need:
Two eggs, two glasses, vinegar, honey, water and time!
What to do:
1. Fill the two glasses with vinegar.
2. Drop one egg into each glass. Leave for 24 hours.
3. Remove the eggs from the vinegar. Rinse them to wash off the remains of their shells.
4. Empty the two glasses they were stored in and rinse them thoroughly.
5. Fill one glass with water and the other with honey.
6. Now, drop one egg into each glass. If they float, keep a light weight on them to push them completely into the liquid.
7. Leave the glasses for another day before removing the eggs.
What happens:
Initially, the eggs are left in vinegar. The acid of the vinegar dissolves the shell of the egg. This leaves only a thin outer membrane on the egg.
Now, the eggs are kept in water and in honey. Once they’re removed, we see that the egg that has been in the water, has grown plumper while the egg in the honey has shrunk in size!
Why?
The membrane that the eggs have been left with, after having been soaked in vinegar, is soft and porous. When one of the eggs is placed in water, water molecules can easily pass through this membrane. So the egg soaks up water from the glass.
But honey has a high density of sugar molecules. These sugar molecules are too large to pass through the egg. But the egg has some water content. And these water molecules are small enough to make it through the membrane, which they do. So the water from the eggs moves to the honey.
Picture Credit : Google
