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Fertiliser

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

ScienceWhich hypothesis is suitable for testing the effect of fertiliser on two plants?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceIn testing the effect of a new fertiliser which would be the control group?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceIn which investigation would a control group be most useful?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceWhich question is scientifically testable but needs a time period to become more precise?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceA question asks whether fertiliser is beneficial. Which outcome would measure this best?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceIn which situation would a control group be most necessary?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceIn an experiment plants received different amounts of fertiliser but each plant also received a different amount of water. What is the main weakness of this investigation?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceA student selects only plants that are already tall and then tests a fertiliser. What problem does this create?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceIn an experiment the observer knows which plant received fertiliser and unintentionally gives it a higher health score. What problem does this illustrate?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceA student experimented on three plants but planted each in a different type of soil. Why would the conclusion about fertiliser be doubtful?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceWhy may recording only the final height be insufficient when testing the effect of fertiliser on plant growth?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceWhich question is related to the number of leaves?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentEasy ScienceWhich question investigates a relationship between two variables?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsMedium ScienceA student asks which fertiliser is best. What should be added to make the question more scientific?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceIf a student investigates whether fertiliser affects plant height what will be the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsMedium