This week we did an raw egg experiment with vinegar and water and seeing exactly what and why acids and bases work against each other. With water not having acidity the egg shell, which is mostly calcium (another base) it doesn't break down the shell. But, with vinegar being an acid, it works to dominate the egg shell and break down the base and works against it.
We soaked raw eggs in water and vinegar for a week in separate jars and waited. After the week was up, we removed them and took note of how differently the shells were manipulated by each liquid. Interestingly enough, you could do this same experiment with soda, orange juice, or any liquid that has acid in it. You can also see the reaction with baking soda and vinegar. (As you can see from the videos below, the vinegar dissolved the outer shell and left just the membrane of the egg and it was strong enough to bounce on the floor.)
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