Eggs for Biology

In Mrs. Schiefelbein's Biology Class we are learning about osmosis and diffusion. Osmosis is the movement across the cell membrane, and diffusion is the movement of a substance from where there is a large amount of it to where there is a small amount of it. The class is doing a lab to show us all how it works. We are taking an egg and first putting it in a cylinder with 200 mL of vinegar and letting it stay there for two days. The eggs turned out to not have a hard shell anymore but was still in the shape of an egg. I thought they felt like a bouncy ball but a tad softer than an actual bouncy ball. The next day we put the egg into a cylinder of syrup and the egg shrunk in size. So far we are up to the part of the lab where we put the egg in a cylinder of pure water. Within this process of this lab there have been 2 out of 5 eggs that have been harmed and splattered all over the table. Tip of advice, eggs are not easy to clean up on a table.

To the right is a picture of the egg, without its hard shell, in the water.