Evaluating Scientific Explanations

Question 1

Which statements about claims are true? Check all that apply.Sometimes people claim things that are not true.If a scientist claims that something is true, then it is true.A scientific claim is supported by evidence that demonstrates it is true.Scientific claims are the result of controlled experiments.Scientific claims should never be questioned.

Revolt · Accepted Answer

Sometimes people claim things that are not true.; A scientific claim is supported by evidence that demonstrates it is true.; Scientific claims are the result of controlled experiments.

Question 2

A claim is scientific and accurate if it is

Revolt · Accepted Answer

based on data from a controlled experiment and confirmed by multiple trials.

Question 3

Which claim has the highest degree of objectivity?

Revolt · Accepted Answer

A research team working at a university wrote an article stating that multiple experiments have shown that marine ecosystems are sensitive to water pollution.

Question 4

Which of these are characteristics of a strong scientific claim? Check all that apply.The claim cites a specific source.The claim is proposed by an expert in the field.The claim is supported by a large sample size.The claim is the opinion of a non-expert.The claim is supported by public opinion.

Revolt · Accepted Answer

The claim cites a specific source.; The claim is proposed by an expert in the field.; The claim is supported by a large sample size.

Question 5

Your garden is growing strong because of the above-average amount of rainfall this season. You observe that there are more ladybugs in your garden this year than there were at the same time last year. Which explanation is the most valid?

Revolt · Accepted Answer

A gardening book you read cited data showing that ladybug numbers tend to increase in years with lots of rainfall.

Question 6

Which of these data come from reliable sources? Check all that apply.the scientific name of an organism listed in an encyclopediaa list of medical statistics written in a magazine advertisementsolar activity data reported by NASA on its websitethe behavior of a species described in a science fiction novelthe behavior of a species described in a professional journal

Revolt · Accepted Answer

the scientific name of an organism listed in an encyclopedia; solar activity data reported by NASA on its website; the behavior of a species described in a professional journal

Evaluating Scientific Explanations Answers

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