i need more information to help you!

You mean like independent and dependent? The independent is what you’re testing like say you are conducting and experiment on which type of soil provides the best growing environment for plants. You would experiment with different types of soil to see which is the best. The soil types are your independent variable(s). That is what you are testing. The result of your experiment (the dependent variable) depends on the independent (soil) variable of the experiment. The dependent varible in this case may be the height of the plants which may differ on the type of soil they get. Then the constant variable is just that-constant-it does not change. In this case, everything but the soil would be the same since you only want the soil to be the variable responsible for plant height. The amount of sun exposure, water, etc would have to be equal. Hmm I have no idea if this is what you’re talking about, but this is the only thing with variables I did in a science class in high school.

What do you need help with?

We have a test over variables tomorrow, so i’ll just post what I have in my book about them.

“In well-planned experiments, one factor, or variable, is changed at a time. This means that the variable is controlled. The variable that is changed is called the independent variable…A dependent variable is the factor being measured…The variables that stay the same are called constants…A control is a sample that is treated like other experimental groups except that the independent variable is not applied to it.”