5’s third egg experiment

Another egg experiment. Once again using a hard boiled egg but this time using vinegar. The acetic acid in the vinegar will dissolve the calcium carbonate in the egg shell.

There is one more egg in the refrigerator at school. This time, it is a raw egg in vinegar. The students will get to see this egg later this week.

Egg-Teeth Experiment 1

once again a hardboiled egg

IMG_4105

this time use vinegar

IMG_4127

check out the bubbles (carbon dioxide)

 

 

 

 

 

 

IMG_4140

this time you get a shell that starts to dissolve and can be peeled off in a strip

 

Another 5’s egg experiment

The Five Year Old Classes used eggs to learn about teeth brushing.

Egg-Teeth Experiment 1

Start with a clean hard boiled egg

Egg-Teeth Experiment 2

and a bottle of cola

 

 

 

 

 

 

Egg-Teeth Experiment 3

let the egg sit in the cola for a few days

Egg-Teeth Experiment 4

and voila, you have a stained egg

 

 

 

 

 

 

Egg-Teeth Experiment 6

use a toothbrush and some toothpaste and the stain starts to disappear