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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।

ScienceAn instrument was replaced during a long-term observation. What should be done before comparing old and new data?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceIn which scientific question is specifying the observation location especially necessary?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceOne of five observational values is very different from the others. What is the scientifically correct step?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceIf an observer knows the expected outcome of a study what is the best precaution?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA question includes a natural phenomenon and its possible cause. What should be the first scientific step?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceAn observer described animal behaviour as good or bad. Why is this a weak scientific observation?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA student observed that ice melted faster after salt was added. Which question is most suitable for a fair test?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceTwo groups observed the same event but used different terminology. What should be done before combining their data?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA scientific question requires data but the event is very rare. Which method would be useful?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceIf an observation states that a metal is very heavy how should it be improved scientifically?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA student recorded only the result that matched the hypothesis. What scientific problem is this?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert SciencePlant height was measured from different starting points in an observation. What problem will this create?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceWhich scientific question is better answered through long-term observation rather than a direct experiment?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA student measured temperature for five consecutive days but at different times. What improvement is needed for daily comparison?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceIf only large plant species are recorded while counting species in an area what bias will occur?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA research question asks whether urban noise affects student concentration. How can concentration be operationalised?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA natural event can be observed only when it occurs unexpectedly. What can improve data quality?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceSeveral dependent outcomes are being measured in one investigation. What should be done in the scientific plan?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceA student observed the smell of an unknown chemical by bringing it close to the nose. What is the correct scientific practice?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert ScienceIf sound level is measured on different days but the instrument position changes each time why is the comparison weakened?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsLevel 4Expert