TOOTHPASTE EXPERIMENT WITH EGGS

STEP 1
Wash and dry two eggs. Coat the one with a toothpaste containing fluoride. Apply the toothpaste in a coat at least ¼ inch thick and fill in any air bubbles.

Step 2
Use a spoon to place each egg in the bottom of a glass and pour white vinegar into the glasses, deep enough to cover the eggs.Leave the eggs in the vinegar for 7 hours.

Step 3
Bubbles will form on the shell of the unprotected egg while it is soaking in the vinegar. This is a result of the calcium dioxide gas formed by the acid in the vinegar reacting with the calcium carbonate in the eggshell and dissolving it.



Two eggs are washed and dried. The one is coated with a toothpaste containing fluoride. The toothpaste is applied in a coat at least 1/4 inch thick and filled in any air bubbles. A spoon is used to placed each egg in the bottom of a glass and poured white vinegar into the glasses,  is deepen enough to cover the eggs. The eggs are left in the vinegar for 7 hours. Bubbles will form on the shell of the unprotected egg while it is soaking in the vinegar. This is a result of the calcium dioxide gas formed by the acid in the vinegar reacting with the calcium carbonate in the eggshell and dissolving it.