Forgot a Variable~ ^^;;

I forgot to include the controlled variables.  They are:

• the temperature of the milk(when the vinegar is added)
• the temperature at which the casein is allowed to settle
• the amount of milk
• the amount of sun the casein recieves (they need to be put into the sun to dry)
• the amount of time the casein is allowed to settle

I can't think of anymore. T.T
Anyway, I hope that's enough. I don't even know when I'm supposed to hand my blog in tomorrow... Ms Zhang, why'd you have to be away? ;D

Variables...

It was so hard to think of the dependent variable... but I figured that it would be the amount of casein produced or the hardness of the casein. Because I haven't done my experiment yet I really wouldn't know how the casein changes when more vinegar is added. So hopefully I can change it when I actually do it? :D
The independent variable is going to be the amount of vinegar (for my first 'batch' of experiments).
Now I must study for my science atomic theory test. May the force be with me. (That would have been funnier if I had Force and Motion as my topic but anyway, I've found a new joke to use on Ivy and Davian. Hohoho.)