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

ScienceWhich result would suggest that the hypothesised effect may be very small?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceAn experiment had five trials but the student recorded only the average and did not retain the original values. What is the main limitation?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceIn which situation can calculating the mean be misleading?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceA student concludes that fertilizer increases plant growth because the treatment group was taller on average. What else is needed to strengthen the conclusion?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceTwo groups have the same mean result but one group has widely spread measurements. What does this indicate?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceIf repeated measurements in an experiment vary greatly what is the most likely problem?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceWhat is the benefit of increasing the sample size in an experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhy is calculating only the average insufficient when three measurements differ greatly?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceWhat is the main advantage of increasing sample size in a scientific investigation?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceA study reports only the average but not the spread of data. What information may be hidden?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceHard