How do you find the independent variable and dependent variable? how do you you know is which?

In any given experiment, there is a control variable, an independent variable, and a dependent variable.

The independent variable is the variable which can be continuously changed by the experimenter. This is necessary in order to come up with a dependent variable.

The dependent variable is the outcome variable which changes with whichever independent variable is being used/changed. This variable outcome is dependent on whatever the independent variable is.

A control variable also plays a role in every experiment. A control variable is any other variable within the experiment that could potentially affect the outcome.

Hope this was helpful.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

digestion

it excretes wastes