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Exploration Entering The World Of Secondary Science

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

ScienceWhy is it suitable to take all measurements at the same time in an experiment on soil depth and temperature?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student measures soil temperature at different depths. Which is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhich is the most appropriate controlled variable in an experiment on the temperature of coloured surfaces?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student places surfaces of different colours in sunlight and measures temperature. What type of variable is surface colour?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceIn a detergent experiment foam height is measured in a different container each time. What problem may occur?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student adds different amounts of detergent and measures foam height. Which variable should be controlled?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhy may measuring the time for ten oscillations be more useful than timing one oscillation in a pendulum experiment?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student measures the time for ten oscillations of pendulums of different lengths. Which is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhat problem occurs if reactant amounts are not kept the same in a reaction-rate experiment?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student measures the time taken for a reaction to finish at different temperatures. What is reaction time?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhy should the duration be kept the same in an experiment on leaf area and water loss?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student measures water loss from leaves with different surface areas. Which is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhy is it necessary to release the car from the same point each time in a ramp experiment?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceIn the ramp experiment what type of variable is the time taken by the car to reach the bottom?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student sets a ramp at different angles and measures the time taken by a car to reach the bottom. What type of variable is ramp angle?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceIn an experiment on exercise and pulse rate what additional variable may affect the result if different students are used?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student measures pulse rate after exercising for different durations. Which is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhy is it necessary to keep the bulb type the same in an experiment on voltage and brightness?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceA student measures bulb brightness at different voltages. What is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhy should the initial size of potato pieces be kept the same in the salt-solution experiment?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium