Posted in Science and other Hands On activities
Well yesterday we concluded our experiment with great results : ) There was noticeable changes in each of the egg shells when we compared them to our control egg shell.
This is our egg shell that was placed in the coffee. It's hard to believe that in just 24 hours it turned so brown.
The cola egg shell above also had a remarkable change going very brown.
The egg shell placed in the tomato juice was slightly discolored but I was more interested in seeing if the shell became weakened at all since tomatoes are acidic and can aid in weakening the enamel but there was not change in the shells strength.
This is our blueberry stained egg shell. No surprise here, I was pretty sure it was going to come out purple : )
And last but not least our egg shell that we placed in the vinegar jar. The shell was completely eaten away in 24 hours leaving only the membrane behind. I had to hold it with a fork for the photo so you could get a good look at how limp it is : )
It's amazing how quickly the vinegar ate away the shell and a very good thing that our teeth don't soak in acids as concentrated as that! Fruit juices, dried fruits, soft drinks, snack and sugary foods which change into acids in our mouths are also causes of enamel erosion and over time of course can eat away the enamel causing cavities and weakened teeth. So brushing regularly definitely helps to combat it and I also read that eating alkaline foods such as cheese and nuts after snacking can help stop the decay and that it takes 30 minutes after you have stopped eating for the saliva in your mouth to return the pH balance back to normal. Very interesting and good food for thought.
Happy brushing,
BChsMamaof3
This is our egg shell that was placed in the coffee. It's hard to believe that in just 24 hours it turned so brown.
The cola egg shell above also had a remarkable change going very brown.
The egg shell placed in the tomato juice was slightly discolored but I was more interested in seeing if the shell became weakened at all since tomatoes are acidic and can aid in weakening the enamel but there was not change in the shells strength.
This is our blueberry stained egg shell. No surprise here, I was pretty sure it was going to come out purple : )
And last but not least our egg shell that we placed in the vinegar jar. The shell was completely eaten away in 24 hours leaving only the membrane behind. I had to hold it with a fork for the photo so you could get a good look at how limp it is : )
It's amazing how quickly the vinegar ate away the shell and a very good thing that our teeth don't soak in acids as concentrated as that! Fruit juices, dried fruits, soft drinks, snack and sugary foods which change into acids in our mouths are also causes of enamel erosion and over time of course can eat away the enamel causing cavities and weakened teeth. So brushing regularly definitely helps to combat it and I also read that eating alkaline foods such as cheese and nuts after snacking can help stop the decay and that it takes 30 minutes after you have stopped eating for the saliva in your mouth to return the pH balance back to normal. Very interesting and good food for thought.
Happy brushing,
BChsMamaof3
Posted by 
Posted by 
Posted by 
Posted by 
Posted by 
Posted by 
