Evaluating Scientific Explanations — Unit test Answers
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Maggie is a member of her school’s environmental club and is interested in recycling. She asks the question, “How does exposure to the environment affect recyclable plastics?”What best describes why and how Maggie should change her question to make it a better scientific question?
A
The answer to the question leads to a testable hypothesis, so the question should be changed to prevent testing.B
The question involves giving an opinion about recycling, so it should be changed to rely only on facts.C
The focus of the question is too broad, so it should be narrowed to a single environmental factor.D
The results are too uncertain, so the question should be changed to one that has a known outcome.22
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View the spinner.
A
red as well as blueB
greenC
blue as well as greenD
yellow23
Which statement best describes comparative and descriptive investigations?
A
They both include a question, procedure and conclusion.B
They both include a hypothesis.C
They both require a specified control group.D
They both use independent and dependent variables.24
After watching a show about submarines, Jamil wants to learn more about the oceans. Which question could be answered through scientific investigation?
A
Which ocean has the best beaches?B
Which type of whale is the most popular?C
What ocean has the best scuba diving spots?D
What substances dissolve in ocean water?25
If peers accept a scientific paper’s claim, what is the next step in the process?
A
Peers will ask for further revisions.B
Peers will distribute the paper to scientists outside their field.C
A journal will publish the paper.D
A journal will ask for more documentation of data.Did you find these answers helpful?
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