Design an experiment to test the effect of aeration on the growth of roots of bean seedlings. in your
answer, be sure to:
• state one hypothesis the experiment would test
• describe how the control group will be treated differently from the experimental group
• identify the dependent variable in the experiment
• state one reason why many setups should be used in both the experimental and control groups
• state one reason why several different kinds of seedlings were not tested in this experiment