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Henry and Eliza conducted an experiment using plant fertilizer. They added different amounts of fertilizer to seven pots of bean sprouts. The pots were the same size and had the same type and amount of soil. They were given the same amount of seeds, light, and water. To find out how the fertilizer affected the growth of the sprouts, Henry and Eliza calculated the average height of the bean sprouts in each pot. Independent, dependent, and controlled variables are...
What is amount of fertilizer (IV), height (DV), and same size, same type, amount of soil, same kind of fertilizer, same plant, seeds, light, water?