My mom did a very good Science Project when she was younger. I don't know but this might help!!!
1. You will need a plastic cup 1 egg and vinger
2. Put the Egg in the plastic cup and pour the vinger inside
3. Sit this cup underneath a sink or on top of the frigerator
4. Wait about 5-7 days, once you get the egg it would be very soft, you would see right through it, the yok inside. It would blow up in size, and all of the white that was on it before, would be in the vinger. Very small project but works for the most part and it is easy and simple and third grade material
****Note**** Do Not Drop the Egg there will be a big mess, and the project would fail.
Actually the egg project is really good. If you rub, most of the shell will come off after about one day. Weigh the egg, and then put it in water to see how much water it will hold. Then put it in dark corn syrup, and the water will go back out. Weigh it again. It's really a cool experiment.