Question

why must an experiment have constants? constants ensure that only the independent variable is affecting the results of the experiment. constants ensure that only the dependent variable is affecting the results of the experiment. constants act as a baseline for comparison when changing the independent variable. constants act as a baseline for comparison when changing the dependent variable.

Explanation:

Constants in an experiment are factors that are kept the same throughout. They ensure that any changes in the outcome can be attributed to the independent variable, not other factors. This helps in accurately determining the relationship between the independent and dependent variables.

Answer:

Constants ensure that only the independent variable is affecting the results of the experiment.