Reference no: EM133073769
Worksheet: The Scientific Method
Read "The Scientific Method"
1) What does "Iterate" mean?
2) What is a "hypothesis"?
3) What is the "next hypothesis" to explain why the toaster is not working?
Read "Controlled experiments"
4) How many bean seeds are planted in each pot? ____________________
5) What the independent variable in the bean seed experiment?
6) What is the independent variable in the coral bleaching experiment?
Read the section "Solving problems in Biology"
7) Explain what is meant by "inductive reasoning": ________________________
8) In the example of hymenopterans, what do "All hymenopterans have"? ______
9) What is the "inductive leap" ? ______________________________________
10) Explain "deductive reasoning". ____________________________________
11) Give your own example of deductive reasoning:
12) Explain in your own words the meaning of a theory in science.
Read "Sowing seeds in a magnetic field"
13) Why must there be "more to it" than the idea that plants grow towards light?
14) Give your own example of a plant behavior that is affected by gravity:
15) What are the two possibilities for how plants detect gravity?
16) Explain why the shuttle experiment will use "artificial gravity" produced by magnets.
17) Why is this experiment conducted in the dark?
18) What are bacterial viruses called? __________________
19) What does a "phage" consist of? ______________________________
20) In the animation, how many phages infect one bacterial cell ? _____________
21) Does the protein coat of a phage get injected inside a bacterial cell? ________
22) Which radioactive chemical was used to label amino acids? ___________
23) In the first part of the experiment, with radioactive protein, how many new phages are formed inside the bacterial cell?
24) How were the protein coats removed from the surface of the bacteria?
25) Is 32P used to radioactively label amino acids or DNA ? _______________
26) What did this experiment demonstrate? ___________________________
27) What is the hypothesis here? ____________________________________
28) Why did dyeing the plumage of the chicks not work well? ______________
29) What three data did the scientists decide to compare?
30) Click on "Go to Figure 2" and summarize the results: __________________
31) Do the results support the original hypothesis? Explain your answer: Read "Know it's a placebo? The ‘medicine' could still work"
32) Why is the "morphine for pain" an example of the placebo effect, rather than the real action of morphine as a painkiller?
33) How many sessions do the subjects need to be conditioned to believe the placebo works? ______________
34) How did the scientists conduct the research? _____________________________
35) Why did some subjects have a high pain tolerance?
36) What, in fact, was the "treatment"? _____________________________________
37) Do you think it is ethical to wean a child off a drug and switch the drug to a placebo? Explain your answer.
Attachment:- Scientific Method.rar