Bob is curious about why his white bread grows mold so quickly. So he asks a question, does some research, creates a hypothesis, and sets up his experiment. He wants to see if his white bread will grow mold in the refrigerator. So he takes one piece of bread and puts it in the refrigerator. He records how much mold grows on the bread each day. He concludes that it takes his bread 10 days to grow mold in the refrigerator. What is Bob missing in his experiment?

Question

Biology

Guest

7 February, 07:35

Bob is curious about why his white bread grows mold so quickly. So he asks a question, does some research, creates a hypothesis, and sets up his experiment. He wants to see if his white bread will grow mold in the refrigerator. So he takes one piece of bread and puts it in the refrigerator. He records how much mold grows on the bread each day. He concludes that it takes his bread 10 days to grow mold in the refrigerator. What is Bob missing in his experiment?

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Rashad Hammond · Answer 1

Bob is missing a control group for his experiment. He knows that his bread grows mold with time when it is out in the open, but he did not record exactly how long it takes when it is in the open air. Therefore him recording that it grows mold in 10 days in the refrigerator means nothing if he does not know how long it takes normally. P. S. bread stays fresher longer when it is frozen. : D