Answer:
A hypothesis is a proposed explanation for a phenomenon, typically written as an "if...then" statement. The "if" part of the statement describes the independent variable, which is the factor that is being manipulated or changed in the experiment. The "then" part of the statement describes the dependent variable, which is the factor that is being measured or observed in response to changes in the independent variable. For example, if I increase the amount of fertilizer given to plants (independent variable), then they will grow taller (dependent variable).