My mother always told me that the green tea is bad for your teeth. I attempted to prove her wrong by creating a controlled experiment. In it, I decided to get two people who volunteered as test subjects; person A was given a schedule where he would drink 3 green tea cups a day, person B was given a schedule where he would drink 3 cups of water every day. The result was that person A had his teeth darkened, person B's teeth remained the same color. What is the independent variable, the dependent variable and the controlled variable?
independent variable: green tea vs. water
dependent: teeth color
controlled: amount of liquid and how long...What is the independent variable, the dependent variable and the controlled variable?
Good expirement.
IV: Drink (Water, Green Tea)
DV: Color of Teeth
CV: The person same person (it doesnt apply to this one though), amount of liquid, time (how long you ran the expirement), there can be a lot.
Independent variables answer the question "What do I change?".
Dependent variables answer the question "What do I observe?".
Controlled variables answer the question "What do I keep the same?".
Please pick as 'Best Answer' Thank you. Good luck I hope you get a good grade :)
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment