Best Fertilizer for Corn

Experiment You want to determine which fertilizer makes corn plants grow the tallest, Miracle Grow, Scotts, or Pennington. You plant rows of corn and treat each row with a different type of fertilizer. You measure the average height for each row after 10 weeks. Questions Name the Independent and Dependent Variables from the experiment above. Name two good Control Variables you would keep track of in this experiment. This experiment needs a Control Experiment added to it. Is it a Positive Control or Negative Control that you need to add? Describe what you would do. Create a hypothesis for this experiment.