Experiment for Kids – Using an Egg to show the importance of Brushing their Teeth!General — By Shannon Schmid on November 4, 2011 at 5:24 pm
I recently watched a really fun & practical science experiment in a kindergarten class. It shows children in a really active and visual way- how important tooth care is. Which is perhaps a particularity important subject right now… with all the Halloween candy that’s still floating around:)
Because of the similarities between tooth enamel and eggshells, you can use hard-boiled eggs to demonstrate to small children just how important Brushing their teeth is!
I did this fun little project with my 3 year old- and she really seemed to get the point!
Here is what we did:
1) Boil 2 to 3 white eggs. You only need 1 or 2 eggs for the experiment, but the shell needs to be un-cracked, so it helps to have an extra one!
2) Fill a small glass with dark soda. Place a hard-boiled egg in the cup and leave it for 5 hours or overnight.
(I found overnight to be a little too long, and made the shell a bit too stained and brittle. 5-6 hours seemed perfect to me.)
3) Check the egg in the morning and discuss the stains that have appeared on the shell! Talk about how the eggshell is a lot like tooth enamel, and ask your child what they think can remove the stains?
4) Place some toothpaste on a toothbrush and let your child go to town, brushing the stains off the egg!
Explain how brushing their teeth keeps their teeth clean and white – just like the egg shell!
Since we did this experiment my daughter has been excited to brush her teeth, and actually does a better job of it. I think the visual really helped her!
I’d love to hear how you get your child to practice good hygiene!