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Class 9 · Science · Medium
→Which plant will be the control group in an investigation of fertiliser effect?
Class 9 · Science · Medium
→What is the most appropriate use of a control group in an experiment?
Class 9 · Science · Medium
→Which hypothesis also includes a clear time period?
Class 9 · Science · Medium
→Why is only one main factor changed in a fair experiment?
Class 9 · Science · Medium
→If the effect of water temperature on dissolving rate is tested which factor should be kept constant?
Class 9 · Science · Medium
→In which experiment is the independent variable most clearly identified?
Class 9 · Science · Medium
→In an experiment a student tests how light duration affects plant growth. What is the dependent variable?
Class 9 · Science · Medium
→Which statement is the most suitable scientific hypothesis?
Class 9 · Science · Medium
→A student investigates how stirring speed affects the time taken for salt to dissolve. Which factor should be kept constant for a fair test?
Class 9 · Science · Medium
→What is the benefit of including both raw data and processed data in a scientific report?
Class 9 · Science · Medium
→A student tests how fan speed affects the drying time of cloth. Which should be a controlled variable?
Class 9 · Science · Medium
→Why is it useful to state the measuring range of apparatus in an experimental method?
Class 9 · Science · Medium
→The recorded data oppose the hypothesis but the procedure was correct. What is the most appropriate conclusion?
Class 9 · Science · Medium
→Why is it necessary to keep time intervals equal in an experiment?
Class 9 · Science · Medium
→Which common format clearly states cause and effect in a hypothesis?
Class 9 · Science · Medium
→Where should the eye be positioned when reading the volume of water in a measuring cylinder?
Class 9 · Science · Medium
→In which situation would the validity of a result be highest?
Class 9 · Science · Medium
→A student tests the effect of distance from a magnet on iron nails. What is being changed?
Class 9 · Science · Medium
→What is a feature of a good experimental question?
Class 9 · Science · Medium
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