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Which question is scientific?

Answer and explanation

Correct answer: Does light affect plant growth?

The direct answer is A: “Does light affect plant growth?” is scientific. A scientific question can be investigated by observation or a controlled experiment and uses measurable quantities. Step by step: change or compare the amount of light; keep other conditions, such as plant type, water, soil, and time, as similar as possible; measure growth using height, mass, or leaf number; compare the results. Option A is correct because both light and growth can be defined and measured. Option B is wrong because beauty is a personal judgement unless a measurable standard is supplied. Option C is wrong because luck is a belief rather than a clearly testable physical variable. Option D is wrong in this form because “happy” for trees is not clearly defined or directly measurable. Memory cue: scientific questions usually ask about observable, measurable relationships.

Related tags

Plant GrowthLightTestable QuestionScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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