Not sure if this will help but I am a very visual learning, like my students so acronyms like the DRY MIX will be wonderful!! Also, I teach my students that the Independent Variable is usually the thing you are testing and the Dependent Variable is what you usually measure. I also tell them that the Independent variable is like the "cause" and the Dependent Variable is like the "effect".
For example, If plants require sunlight, then the growth of plants will increase with more exposure to the sun than plants that are in the shade.
Independent variable: sunlight
Dependent Variable: growth of plants
NOTE: sunlight (causes) plants to grow or not grow (an effect) ALSO,
growth of plants DEPENDS on the amount of sunlight...
Like every thing in life, there are exceptions, however, for the most part, my students can understand the concepts "independent" of each other by learning it this way. It took me a couple of years to get it straight myself (as I sit hear and contemplate if I am telling you the right thing...haha). Studied separately and in a worksheet, it seems easy, however, creating your own experiment and pointing these two out get confusing especially if there is more than one variable (I tell students too many variables will result in you not knowing what CAUSED the change that you are observing whether it be growth, time, speed, etc..).