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Variables in a science fair

Posted: Sat Feb 07, 2015 10:20 am
by lys1693
Question: Does apple, cranberry, grape, lemon, orange, or pineapple juice have the lowest PH level?

Independent variables: ?
Dependent variables: ?
Controlled variables: ?

What is the variables in this project? Especially the independent variable!

I ONLY HAVE TODAY TO FINSIH! PLEASE QUICKLY ANSWER!

Re: Variables in a science fair

Posted: Sat Feb 07, 2015 10:34 am
by HowardE
You might start by taking a look at: http://www.sciencebuddies.org/science-f ... bles.shtml

Your experiment is to take samples of each fruit and measure the pH. What choice are you making? The result is the pH. If the independent variable is your choice and the dependent variable is the result, can you see which variables are which?