Egg Osmosis

I am an eighth grade student in a high school regents class and im 13. today i will be talking to you about this experiment i did that i named it Egg osmosis.In this experiment what i did was that i took a jar, put vinegar in it and then put it in an egg. then i left the egg in vinegar for 3 days including the weekend. and when i came back i weighed the egg and compared it to how much it weighed before the weekend.and it had an 3% change and then i put the egg in distilled water and i left it there for the next couple of days.ovr the next couple of days i noticed that the egg shell had dissolved then i took it out and did the same a i did before weigh it and compare it.and it had a 5.1%change. so in total it had a 8.1% change from when i put it in the vinegar then when i took it out