Problem
Which citric fruit will erode the most enamel of a tooth?
Variables
Independent Variable: the type of citric juice
Dependent Variable: the amount of dental erosion
Dependent Variable: the amount of dental erosion
Constants
- The amount of liquid in each cup
- Time of day the teeth were taken out of the cups
- The same liquid for the same tooth
- How the weight was measured
- The amount of time for each trial (one week)