Brush Your Teeth! (another experiment)

A couple of weeks ago I saw some cute preschool activities about dental health at 2 Teaching Mommies, I was inspired!  We didn’t get to Amber’s ideas, but we did fit in the science activities from 1st grade with Miss Snowden. After talking about the germs in our house (see this post), it seemed fitting to talk about the germs in our mouths.

I hard-boiled six white eggs and we chose soda, grape juice and coffee for our science experiment.  We poured the liquid into six glass cups and let them sit for about eight hours.

At the end of the day it was time to check out our “teeth.” I had the kids predict whether their “teeth could be cleaned and which liquid would leave the most lasting stains on their “teeth.” Then the kids scrubbed away. They had a blast and worked hard at it for nearly a half-hour.

In the end, they were able to get much of the stain off, but not all of it.  And, as it was the end of the day, they headed off to brush and floss their own teeth!

Above are the “coffee” and “soda” stained “teeth.” The grape juice looked the worst initially, but became surprisingly clean.

If you want to do a dental unit with your preschooler or kindergartener be sure to check out the Dentist Preschool Unit over at 2 Teaching Mommies.

Add a Comment
Back To The Homeschool Den
  1. by Taste Buds and Teeth Cleaning « Shruti Gupta's Blog

    On August 17, 2013 at 8:31 am

    [...] we did the following “brush your teeth” experiment. This is what he wrote in his science [...]

  2. by | The Homeschool Den

    On December 12, 2014 at 9:21 am

    [...] if you’re studying the mouth you might want to do this cute activity we did last year about the importance of brushing your teeth. Click on the picture for more [...]

  3. [...] if you’re studying the mouth you might want to do this cute activity we did last year about the importance of brushing your teeth. Click on the picture for more [...]