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Salt

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

ScienceWhile investigating the effect of salt amount on the boiling point of water why is water without salt included?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentHard ScienceA student investigates how the amount of salt affects the boiling point of water. Which is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhile testing the effect of salt amount on the boiling point of water, which factor should be kept constant?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceIn the salt experiment what type of variable is the boiling point of water?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentEasy ScienceIn a salt dissolving experiment what type of variable is the dissolving time?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentEasy ScienceWhat is the main problem if seeds of different species are used while testing the effect of salt on germination?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard 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 ScienceAn investigation asks whether salt changes the boiling of water. Which question is more scientific?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceWhich hypothesis clearly states both cause and result?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceA student uses a different amount of salt each time although the question concerns temperature. What has the salt amount become?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceA student investigates how water temperature affects the time taken for salt to dissolve. Which group of factors should be kept constant for a fair test?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert 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 observationsExpert ScienceWhich question clearly shows a relationship between two variables?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsMedium ScienceA question asks how the amount of salt affects the boiling point of water. What is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsMedium