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BIO 156 - Exam 1 Thought Questions with correct Answers
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BIO 156 - Exam 1 Thought Questions with correct Answers
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BIO 156 - Exam 1 Thought Questionswith correct Answers
A) What is the definition of biology? - Answer -Biology is the scientific study of life and
organisms.
B) What is science? - Answer -Science is a tool used to answer certain questions about
the natural world.
C) When/where does science/scientific method "work" best? - Answer -Science is a tool
that works best when we are asking questions and expecting answers in CMW world.
D) Why should you make sure that your research question is clear and precise? -
Answer -Starting with a clear and precise RQ increases the probability of a clear and
precise answer.
E) How might you make a RQ more clear and precise? - Answer -Define, describe, and
clarify
F) Why is "peer communication" mentioned in step 1 of the H-D scientific method? -
Answer -Peer communication should actually occur in an informal way in every step of
the H-D scientific method.
G) What exactly is a hypothesis? Describe 2 properties of a good/useful hypothesis. -
Answer -- A hypothesis is one of the many possible answers to the RQ; it is tentative,
educated answer to the RQ.
- 2 properties: a) valid, it has to make sense. b) testable & it could make predictions
about the CMW world.
H) List 2 ways a hypothesis and a predication are different. - Answer -- a hypothesis is
created before predictions are created.
- a hypothesis is used to generate predictions.
- a hypothesis is much more "general" than a prediction.
I) What is the difference between a hypothesis and a theory? - Answer -- A hypothesis
is just one of the possible answers to the RQ.
, - a theory is one of the best hypotheses -it has tested and shown to be well-supported =
it makes true predictions about the CMW world.
J) How do we decide if a hypothesis gets to "stay on the list of possible answers" or
gets through thrown off the list? - Answer -- If the hypothesis makes true predictions, it
is considered useful and a "keeper".
- If the hypothesis makes false, predictions, it is considered rejected and falsified;
therefore it gets thrown out.
K) Why is it important to identify the controlled variables in your experiment? What is the
"rule of same"? - Answer -- If you don't have controlled variables, your experiment will
be altered. You can't have multiple changing variables because it will be hard to keep
track of them. Having controlled variables will ensure consistency.
- "The Rule of Same" means certain things have to remain the same throughout the
entire experiment.
L) What is the research question in the "Alka Seltzer" lab experiment? - Answer -Will
Alka Seltzer dissolve more quickly in warm water than cold water?
M) List 2 variables that had to be controlled in your Alka Seltzer experiment. - Answer --
amount of Alka seltzer
- shape of Alka seltzer
- type of Alka Seltzer
- amount of water
- size of beaker
- type of water
- definition of dissolve
- criteria for"more quickly"
N) Explain 1 way that the scientific method helps you "avoid being misled" as you try to
answer questions. - Answer -1. Provides a time-tested SYSTEMATIC METHOD to
Follow.
2. ASSUMES you will interact with other SCIENTIFICALLY-TRAINED PEERS right from
the beginning.
3. INSISTS that you consider how the RQ is worded = precise, clear.
4. INSISTS that you consider MULTIPLE POSSIBLE "ANSWERS" to the RQ.
5. INSISTS that you make/test predictions about the countable/measurable natural
material world.
6. INSISTS that you examine possible BIASES.
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