Which Type of Orange Juice has the most Vitamin C?

[yehuol]

Hi, my son has choose to do this project and he is having a hard time starting it, and i really dont have a clue on what to do either. He is being asked for a variable, a outcome variable and 10 constants. The variable would be the iodine and soluble starch and the outcome would be to know whch OJ has more vitamin C by doing the trituration. We need 10 constants that will remain the same but we are kind of confuse.

Thank you!

[deleted-71712]

Hi yehuol,

What you're looking for are what we call the independent variable, dependent variable, and controlled variables. Lots of info and examples here:

http://www.sciencebuddies.com/science-f ... test.shtml
http://www.sciencebuddies.com/science-f ... bles.shtml

Amanda