Investigating the Effects of Acid on an Egg

Last week we did a science experiment.We wanted to investigate the effects of acid on an egg.  We submerged the egg in a jar of vinegar. After a while we noticed hundreds of  tiny bubbles surrounding the egg There were caused by a chemical reaction when the acetic acid in the vinegar combined with the calcium carbonate and released the gas carbon dioxide.
The experiment took eight days and we recorded the results in our flip book.