In an experiment for science class, six pepper plants grown in individual containers are separated into two groups. one group is placed in a room that gets sunlight, and the other group is placed in a dark room. all of the plants receive the same amount of water daily. after three weeks, the plants are observed. why were all the plants in the experiment pepper plants

First, we need to define exactly what is an experiment.

An experiment is a set of systematic processes used to valid and prove a hypothesis or a system of hypothesis. All experiments need to have validation to ensure that results are reliable, other way, all efforts to demonstrate the hypothesis will be not trustful. Through experimental processes some behaviours are observed with a cause-effect relation between two variables, which are part of the purpose of the study.

So, before reproducing an experiment, all variables must be identified and defined, to be sure that it's been studied the right things. In this case, the study is about pepper plants, this is one of the variables, the sunlight is the other variable. Therefore, in the experiment, pepper plants are present because the study is towards their reaction to sunlight, the study cannot use tomato plants, because the hypothesis is not about them.

First, we need to define exactly what is an experiment.

An experiment is a set of systematic processes used to valid and prove a hypothesis or a system of hypothesis. All experiments need to have validation to ensure that results are reliable, other way, all efforts to demonstrate the hypothesis will be not trustful. Through experimental processes some behaviours are observed with a cause-effect relation between two variables, which are part of the purpose of the study.

So, before reproducing an experiment, all variables must be identified and defined, to be sure that it's been studied the right things. In this case, the study is about pepper plants, this is one of the variables, the sunlight is the other variable. Therefore, in the experiment, pepper plants are present because the study is towards their reaction to sunlight, the study cannot use tomato plants, because the hypothesis is not about them.