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In which experiment can both qualitative and quantitative data be recorded?

Answer and explanation

Correct answer: Observing the effect of fertiliser on leaf colour and leaf number

The direct answer is A. Qualitative data describe qualities in words, such as colour, texture, or smell. Quantitative data are numerical measurements or counts, such as height, mass, or number. In option A, leaf colour is qualitative because it may be described as light green or dark green, while leaf number is quantitative because it can be counted. A fertiliser experiment can therefore record both kinds of evidence. Option B records only beauty, which is a subjective qualitative opinion and provides no quantitative value. Option C records only taste, also qualitative and potentially unsuitable for a safe plant experiment; it has no number. Option D gives only an opinion, so it is neither a reliable numerical measurement nor a well-defined observation. A is correct. Memory cue: “quality” means descriptive words; “quantity” means numbers or counts.

Related tags

Qualitative-DataQuantitative-DataFertiliserLeavesHypothesis And ExperimentationExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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