A factor you can change in a investigation?

A factor you can change in an investigation is the independent variable, which is the condition or factor that you manipulate to observe its effect on the dependent variable. For example, in an experiment testing the effect of sunlight on plant growth, you can change the amount of sunlight each group of plants receives. By systematically altering this factor, you can analyze how it influences the growth outcomes. This allows for a controlled examination of cause-and-effect relationships.