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Description

Find out how different drinks affect your teeth using this eggcellent eggsperiment.

Resources

You will need:
Jars with your eggs from Part 1

Instructions

Eggs-amination time
After a week, the person leading the activity should ask everyone what they think has happened to each of the eggs.
Which mixture will have stained the eggs the most? What changes do they think will have happened to the eggs?
Remove the eggs from the jars one by one, and look at how the liquids have affected each of the eggs. Some will appear discoloured or stained by the liquid.
The egg in vinegar should be rinsed with water, and if it is gently rubbed, the shell should come away. This is because the vinegar is very acidic and decays the egg shell. The person leading the activity should explain that this is an extreme example, but that soft drinks also contain a lot of acid, and so drinking lots of them can be damaging to your teeth.
Compare the eggs that had been left in coffee to see whether the one in toothpaste was affected less than the others. It should be less stained than the eggs without toothpaste.

Tags

• Eggs
• science
• science experiment
• Science Investigator

Badge Links

• Scientist - Other
• Skills - Activity