.Ella Martin
Egg in Soda Experiment
Classroom Activity for Learning About Dental Health Via an Egg in Soda Experiment. At Tender Times Child Care and Preschool they were little scientists for the day!
The class did an experiment with an egg put in soda to learn all about why brushing their teeth is important--especially after eating or drinking sugary treats. Everyone learned about how teeth have enamel that can be stained by sugar and used eggs to represent this for the experiment. Then the eggs were put in soda and stained with it! It was a very fun unit and was a fantastic way to visually illustrate what sugar can do to our teeth.
Materials for the Egg in Soda Experiment
To do this experiment you will need:
Two white-shelled eggs that have been hard-boiled.
2 clear cups made out of glass or plastic.
A dark soda such as cola or root beer to put in one cup.
Water to put in one cup.
A toothbrush and toothpaste.
Science Experiment Worksheet
Simply click on the worksheet for it to open at full-size, then print it!
How to Do the Egg in Soda Experiment
Follow these steps to do the experiment:
First, explain to your class how all our teeth have a protective covering that is called enamel. Discuss how an egg's hard shell that protects everything inside is like enamel for our teeth.
Talk to the students about how this experiment will illustrate what happens to teeth (via the egg) if a sugary drink is allowed to be left on them for an extended period of time.
Place a (cooled) hard-boiled egg in the cup of soda and place the other hard-boiled egg in the cup of water. Let them sit in the glasses over a night.
The next day at school, check the eggs with the students and talk about what results everyone observes. The egg that soaked in the soda will have its shell be stained and the egg that soaked in the water will still be a bright white.
Have the students practice brushing by using the toothbrush and toothpaste on the stained egg. They will be able to clean some of the stains off, just like how we keep our teeth clean with toothbrushes and toothpaste!
