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Uncontrolled Variable

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

ScienceA student investigates how ramp angle affects the speed of a toy car. The car is released from a different starting point in each trial. Which conclusion is appropriate?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentHard ScienceIn an experiment average plant growth increased as fertilizer amount increased but soil acidity was not measured. Which is the most scientific conclusion?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentHard ScienceIn a filtration experiment which variable becomes uncontrolled if a different cloth is used each time?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceIn an experiment the result changed although the independent variable was not changed. What is the most appropriate explanation?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhat may happen if controlled variables are not kept the same in an experiment?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentEasy