a. A variable is an element that changes. Why is sweeteneer S called the experimental variable in the experiment?Answer
b. With reference to Figure 1.10, explain this definition: A control group goes through all the steps of an experiment except the one being tested. Answer
c. Why is bladder cancer the dependent variable in the described experiment?Answer
d. Does the experiment have elements that are constant and not variable? What are they?Answer
e. What is the value of including a control group in an experiment?Answer
2. Considering the scientific process:
a. Scientific hypotheses must be falsibiable. Why is the hypothesis "Every human being has a guardian angel" not falsifiable? Answer
b. Why is the hypothesis "Biotin is required for good health" falsifiable?Answer
c. In what way are religious beliefs different from scientific beliefs?Answer
