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Class 9 · Science
→A result was obtained repeatedly but only under similar conditions. What is needed before applying it to other conditions?
Class 9 · Science
→A scientist wrote that the results prove the hypothesis. What would be more cautious scientific language?
Class 9 · Science
→In an experiment the control group accidentally received part of the treatment. What effect may this have?
Class 9 · Science
→What is the major benefit of following a predetermined analysis plan in research?
Class 9 · Science
→What does it mean for a scientific claim to be falsifiable?
Class 9 · Science
→In an experiment the observed difference is very small and the instrument uncertainty is larger. What is the most appropriate conclusion?
Class 9 · Science
→Why is it necessary to state the conditions under which a scientific conclusion applies?
Class 9 · Science
→If repetition of an experiment gives the same incorrect value each time which check would be most useful?
Class 9 · Science
→Why is the smallest division of a measuring instrument important in an experiment?
Class 9 · Science
→A claim is supported only by saying that it has been believed for many years. Why is this scientifically weak?
Class 9 · Science
→Why is revision of scientific knowledge not considered a weakness of science?
Class 9 · Science
→A researcher described the experimental method in detail but did not explain sample selection. Which assessment becomes difficult?
Class 9 · Science
→Predictions from a scientific model repeatedly turn out to be wrong. What is the most appropriate step?
Class 9 · Science
→A graph displays only the data that support a claim. What type of problem is this?
Class 9 · Science
→Participants in a study reported that they felt better. What is a limitation of this evidence?
Class 9 · Science
→In a medicine study neither participants nor outcome assessors knew the group assignments. Which method is this?
Class 9 · Science
→Several studies support a result but all were conducted by the same institution. What would be most useful next?
Class 9 · Science
→A scientific explanation accounts for many events but makes no new predictions. What is its main limitation?
Class 9 · Science
→If an experiment has no control group which claim will be most weakened?
Class 9 · Science
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