You can simulate the action of acid on structures by placing a whole egg in a glass full of vinegar. Vinegar is another name for acetic acid and the shell of an egg is made out of a substance very similar to limestone.
For this activity, place an egg in a glass of vinegar and observe what happens. Make a recording of your observations just after placing the egg in the vinegar and again after 2 hours.
Record your observations in your journal. Explain how this activity demonstrates an example of a chemical change and how if simulates the effects of acid rain on limestone structures.
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Question

You can simulate the action of acid on structures by placing a whole egg in a glass full of vinegar. Vinegar is another name for acetic acid and the shell of an egg is made out of a substance very similar to limestone. 
For this activity, place an egg in a glass of vinegar and observe what happens. Make a recording of your observations just after placing the egg in the vinegar and again after 2 hours.
Record your observations in your journal. Explain how this activity demonstrates an example of a chemical change and how if simulates the effects of acid rain on limestone structures.
[i need