Peeling a Raw Egg
Distilled white vinegar, a raw egg, a clear glass
If your child fancies him or herself as a "scientist," try this simple experiment to see the effects of acid on a common everyday food item. Carefully place a raw egg inside a clear glass. Pour in enough white vinegar to cover the entire egg. Let it sit for a few days in a secure place. Eventually, the egg will become see-through. The acid in the vinegar literally peels the egg!