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Fair Test

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

ScienceIn which situation will the validity of an experiment be affected most?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceA student uses a different amount of sugar each time in an experiment on dissolving in hot water. What problem will arise?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceA hypothesis states that cloth will dry faster in sunlight than in shade. What should remain the same for a fair test?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceA student hypothesises that water will evaporate faster at a higher temperature. What outcome should be measured?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhy is only one main factor changed in a fair experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceIf the effect of water temperature on dissolving rate is tested which factor should be kept constant?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceA student investigates how stirring speed affects the time taken for salt to dissolve. Which factor should be kept constant for a fair test?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhy is it necessary to change only one independent variable in an experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhat is the main purpose of keeping controlled variables in a fair experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhich is the most appropriate description of a good experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceTime was different in every trial although it was not the independent variable. What effect will this have?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhat problem arises if the seed species is also changed during an experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhich factor should be kept the same when comparing germination of large and small seeds?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceIn an experiment plants received different amounts of water but also different amounts of light. What is the main problem?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceIn a scientific question light water soil and temperature are all changed at the same time. What is the main difficulty?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceA student gave plants different amounts of light while testing the effect of water amount. What problem is this?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceWhat problem may arise from using different sized pots in the same experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceWhich experiment is fair?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceWhat problem occurs if several factors are changed at the same time?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceWhat are controlled variables?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy