Can you please find the dependent and independent variable in this?

My science fair project was soaking red cabbage in boiling water and pouring water into four chemical substances (i used laundry detergent, vinegar, lemon juice, and baking soda) and depending on the color the water changed seeing if it was an acid or base. (it changed pink for acid, blue/green for base). What would be the dependent and independent variable in that? Please help!Can you please find the dependent and independent variable in this?
Kind of an abstract question. The independent variable is the one that you essentially have control to change, which makes me think it is the type of substance you poured the water in to. The dependent color, depending on the other, would then be the color that your solution turnedCan you please find the dependent and independent variable in this?
the independent variable would be the substance that you're pouring water into...the dependent variable is the color of the water since the color DEPENDS on the substanceCan you please find the dependent and independent variable in this?
Firstly, the *color* depends on the acidity/alkalinity of the solution. Your conclusion depends on the color, but the changes in color are due to the different changes to the HOMO-LUMO gap (part of the electronic structure) of the indicator molecule in red cabbage as the molecule undergoes different chemical changes in different pH's ... (yay for orgo!).



As you may guess, your independent variable is the stuff you're testing. Whether laundry detergent is actually laundry detergent is not dependent on the color of some arbitrary solution it is added to. (Well unless you want to go all philosophical on me.) But the color depends on what types of substances are added to it. Your dependent variable are the values which show the results -- stuff you wouldn't have been able to ascertain without actually performing the experiment. (If you happened not to know any better about red cabbage.)