Dental Health Month is February!
This is a great experiment to do with your students to teach them how some foods can stain your teeth.
3 Tupperware to store and soak eggs for each student or group
3 hardboiled white eggs for each student or group
1-2 liters of a dark cola soda
1 bottle of mouthwash
A few tubes of toothpaste
Toothbrushes to scrub eggs when finished
Print off journals for students to use during the experiment.
Before conducting experiment ask students what foods are good for their teeth and what foods are bad for their teeth.
Tell students that we are going to conduct an experiment to see how certain foods can stain our teeth. Tell students that toothpaste and mouthwash can help keep our teeth clean.
Have students label and draw materials needed for the experiment. Have students place one egg in a container with just water, one egg with mouthwash, and the last egg covered in toothpaste. Allow the eggs to sit in these solutions for 4-5 hours. Have students record their observations of the eggs by drawing a picture.
Have students make predictions as to what might happen to the eggs.
After a few hours, drain and rinse the eggs from the water, mouthwash, and toothpaste. Place the eggs back into the labeled containers and cover eggs with a dark cola. Let eggs sit over night.
The next day, drain and rinse the eggs from the soda. Students are to record their observations. Next, place the eggs in bowls and give the students a toothbrush and toothpaste. Have them brush the eggs until the brown soda color is finished. Have them record their observations.