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What Soda Does to Teeth

What Soda Does to Teeth
Messiness: Low
Age Range: 5y - 9y
Estimated Time: 2+ hours

Activity Designer

Ticia Messing
12 Projects

Why is soda bad for your teeth? My kids keep asking why they can't have more soda. The tooth fairy was kind enough to lend us some baby teeth for us to experiment with, and we got some very interesting results.

What You'll Need

How We Did It

What Soda Does to Teeth
Fill a jar with your favorite soda. We have three favorite sodas in our house, so we put in Sprite, Dr Pepper, and Coke. Then fill a jar with water.
What Soda Does to Teeth

Put one tooth inside each jar. (If the tooth fairy isn't kind enough to leave teeth for you, you can use eggs for this experiment...just make sure to keep the eggs refrigerated.)

What Soda Does to Teeth

Over the next several days, take each tooth out and observe it under a magnifying glass. Touch the teeth to feel any differences in them. Describe what it feels like.

What Soda Does to Teeth
After observing the teeth each day, write down the results of that day's observation.
What Soda Does to Teeth

After you've observed the teeth for several days, talk about the end results. (Our family observed for five days; at the end of the five days, the teeth looked very gross!)

What Soda Does to Teeth

The teeth that had been in Coke and Dr Pepper were brown and you could feel the difference. The tooth that had been in Sprite was slightly yellow and pitted. The tooth in the water was the big surprise. Because the water wasn't filtered, it had started to grow things from the bacteria found naturally in your mouth and in the water. It was a good reminder that you need to brush your teeth even if you've had "healthy food"!


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