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You cant win
no it cant bec
it can tumble but it cant roll
a control is a object that cant be changed in an experiment and a variable is a object that can be changed in a expirament
the dependent variable cant change the independent varible, but the independent variable can change the dependent varible. (eg: Bob wants to see if the new baseball pitching machine throws better fastballs then his friend. The baseball pitching machine(independent) could change a fastball(dependent), but a fastball(dependent) cant change the baseball pitching machine(independent).