At home, place an uncracked egg in a small glass bowl and cover it with vinegar. Allow it to sit in the vinegar for 24 hours. Take the egg out and examine the shell. How does this simple experiment...

At home, place an uncracked egg in a small glass bowl and cover it with vinegar. Allow it to sit in the vinegar for 24 hours. Take the egg out and examine the shell. How does this simple experiment demonstrate a possible effect of increased atmospheric CO2 on marine organisms with calcium carbonate shells?