What are some great experiments for science fairs on teeth and things that stain them?

Answer by  sdblack99 (329)

Well teeth and egg shells are made of similar materials. You can use things like coffee or food coloring or coke to soak eggshells in and summarize the results.

Answer by  Bostongal1 (54)

You need more than one tooth (or unglazed enamel can work). Place your teeth (or enamel pieces) in a variety of liquids that can stain them. Suggestions are coffee, tea, cola soda, grape juice (or wine, though possibly problematic). Put one tooth in clear water as a control. Check the teeth daily and record any color changes.

Answer by  mightyspidey (1080)

Common items that stain teeth are coffee, red wine, and cigarette smoking. There are many products that whiten teeth. You could do a before & after experiment.

Answer by  fishy (1085)

Using coffee, tea, grape juice, blueberries, red wine or tobacco and then seeing the effect of toothpastes with and without peroxide as well as whitening rinses.

Answer by  Anonymous

use tea coffee and cola. you could use eggshells to dip them in the liquids but the eggs have to be hallowed, for instructions go to the website (ehow.)