Before revealing the answer, let’s look at what is happening inside an egg as it gets older.
When an egg is freshly laid, the shell contains many tiny pores.
Over time, moisture and some gases slowly leave the egg through these pores.
As this happens, the air pocket inside the egg becomes larger.
That change affects how the egg behaves when you place it in a glass of water.
A very fresh egg usually sinks to the bottom and lies mostly flat.
That is what we see with Egg 1.
