Luis is doing an experiment on plants. He wants to find out if they grow taller when they are given more water. To test this, he
needs to change one variable and keep everything else the same
Which variable should Luis change in his experiment?
OA
the amount of water the plants are given
OB.
the location of the plants
Oc. the time of year that the experiment is performed
OD. the type of plant that is used
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B
Luis is trying to determine whether the amount of water that the plants are given affects the growth of the plants. All other variables should be kept the same in each trial.
