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?
A dependent variable
An independent variable
A control group
More research
Answers
Answered by
1
Answer:
option D
Explanation: Bob needs more research because fungi do not grow in cold places and it can grow in warm places
Answered by
0
Answer:
Bob is missing an independent variable.
Explanation:
To understand science experiments, the difference between dependent and independent variables should be known. The relationship between these two variables should be important in all experiments. An ‘independent variable’ is defined as the variable where the experimenter or the nature controls to perform an experiment.
The variables that are dependent on independent variables are said to be dependent variables. Here the independent variable is the amount of water that got sprayed on the bread. This is because moisture manipulates the mold experiment.
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