The dependent variable in an experiment will be the one

that changes from the independent

Step-by-step explanation:

you change the dependent variable and the dependent variable will tend to change. That is what you measure. If we were testing the growth of ferns and you want to see if more water makes them grow more, the amount of water would be the independent (because youre changing it) and the dependent would be the size of the fern (because the amount of water changes it)