
Next, we took our scientific inquisitiveness further by putting a raw egg into vinegar for a few days last week. The acidic vinegar immediately began dissolving the calcium in the shell. This was obvious by all the tiny bubbles of gas covering the egg. By Friday, soft flaps of shell were peeling off the membrane. Upon washing off the rest of the now soft shell, the children got to hold the shelless egg and see the albumen and yolk through the transparant membrane. It was exciting.