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Class 9 Mcq

Class 9 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceA scientist wrote that the results prove the hypothesis. What would be more cautious scientific language?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceIn an experiment the control group accidentally received part of the treatment. What effect may this have?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceWhat is the major benefit of following a predetermined analysis plan in research?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceWhat does it mean for a scientific claim to be falsifiable?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceIn an experiment the observed difference is very small and the instrument uncertainty is larger. What is the most appropriate conclusion?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceWhy is it necessary to state the conditions under which a scientific conclusion applies?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceWhy is the smallest division of a measuring instrument important in an experiment?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceWhy is revision of scientific knowledge not considered a weakness of science?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceA researcher described the experimental method in detail but did not explain sample selection. Which assessment becomes difficult?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardSciencePredictions from a scientific model repeatedly turn out to be wrong. What is the most appropriate step?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceParticipants in a study reported that they felt better. What is a limitation of this evidence?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceIn a medicine study neither participants nor outcome assessors knew the group assignments. Which method is this?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceSeveral studies support a result but all were conducted by the same institution. What would be most useful next?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceA scientific explanation accounts for many events but makes no new predictions. What is its main limitation?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceIf an experiment has no control group which claim will be most weakened?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceOnly an attractive graph is presented for a scientific claim but the original data are not provided. What is the most appropriate response?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceWhat should be done before removing an unusual value from an experiment?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceA student changes the hypothesis after the experiment and claims it was the original hypothesis. What is the main problem?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceIn an experiment all relevant variables except the independent variable were kept constant. Which conclusion becomes stronger?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2HardScienceWhat is the difference between repeatability and validity of a result?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 2Hard

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