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Class 9 · Science
→Temperature was measured in an experiment but the thermometer calibration was not checked. Which quality may be affected most?
Class 9 · Science
→If the smallest division of a measuring instrument is one millimetre which recording is most appropriate?
Class 9 · Science
→Which conclusion is best supported if sugar dissolved in three minutes in hot water and eight minutes in cold water?
Class 9 · Science
→In which situation is reproducibility of an observation best tested?
Class 9 · Science
→A student compared plants under different light levels but the plants had very different initial heights. What is an appropriate improvement?
Class 9 · Science
→Which question is most suitable for a field observation?
Class 9 · Science
→Only successful trials were recorded and unsuccessful trials were omitted in an experiment. What may result from this?
Class 9 · Science
→Which data-recording method will make later comparison easiest?
Class 9 · Science
→A scientific question asks whether soap concentration affects foam stability. How can foam stability be measured?
Class 9 · Science
→In an investigation a student recorded temperature every five minutes but did not state the total duration. What will mainly remain unclear?
Class 9 · Science
→In which situation would calculating an average be most useful?
Class 9 · Science
→A student viewed the water level in a beaker from above. Which error is likely in this reading?
Class 9 · Science
→In which experiment is the independent variable correctly defined?
Class 9 · Science
→Which statement is an example of incorrectly treating correlation as causation?
Class 9 · Science
→A student recorded only the final height of plants but not their initial height. What difficulty will this create?
Class 9 · Science
→Which method would reduce the effect of human reaction time the most?
Class 9 · Science
→A measuring cylinder was placed on a tilted surface during an experiment. What problem would this mainly cause?
Class 9 · Science
→Which statement correctly distinguishes evidence from inference?
Class 9 · Science
→A student drops a ball from different heights and measures rebound height. Which factor should be controlled?
Class 9 · Science
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