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Class 9 · Science
→While testing the effect of salt amount on the boiling point of water, which factor should be kept constant?
Class 9 · Science
→In an experiment involving light intensity and the rate of photosynthesis, which is the dependent variable?
Class 9 · Science
→In an experiment, the amount of soap is changed and the height of foam is measured. Which is the independent variable?
Class 9 · Science
→If the effect of soil type on seed germination is investigated, what will be the independent variable?
Class 9 · Science
→A student changes the height from which a ball is dropped and records its bounce height. What is the dependent variable?
Class 9 · Science
→While testing the effect of water temperature on the rate of sugar dissolving, which could be a controlled variable?
Class 9 · Science
→The amount of fertilizer is changed and plant height is measured. Which is the dependent variable?
Class 9 · Science
→In an investigation of the effect of light duration on plant growth, which is the independent variable?
Class 9 · Science
→Which factor should be kept the same in a fair test of the effect of soap amount?
Class 9 · Science
→A student investigates how the amount of soap affects foam height. What is the independent variable?
Class 9 · Science
→Which example correctly shows a dependent variable?
Class 9 · Science
→In which experiment is the independent variable identified correctly?
Class 9 · Science
→In a bulb brightness experiment what is using the same type of bulb?
Class 9 · Science
→In the battery experiment what type of variable is bulb brightness?
Class 9 · Science
→A student connects different numbers of batteries and measures bulb brightness. What is the number of batteries?
Class 9 · Science
→In a spring experiment what is using the same spring called?
Class 9 · Science
→What type of variable is the extension of a spring?
Class 9 · Science
→A student hangs different loads and measures the extension of a spring. What is the hanging load?
Class 9 · Science
→What is the purpose of keeping the initial water volume the same in a filtration experiment?
Class 9 · Science
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