The photograph below shows jamal’s bird feeder. jamal asked the question “are hummingbirds attracted to red feeders? ” then, he set up an experiment to test the question. mc006-1.jpg what is the independent variable in jamal’s experiment?

An independent variable is a variable that is controlled in the experiment to test whether there will be an effect on the dependent variable. So in the experiment, the independent variable is the color of the feeder because Jamal wants to know if there is an effect if he uses red feeders on the hummingbirds. This is the one being controlled by Jamal because he can use a variety of colors of the feeders.