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Which sentence is the most objective scientific observation?

Answer and explanation

Correct answer: The flower had five petals and a diameter of four centimetres

The governing concept is objectivity: a scientific observation should describe features that can be counted or measured and checked by another observer. Option B reports five petals and a diameter of four centimetres, so it uses observable evidence rather than personal judgement. The measurements should ideally be obtained with suitable instruments, but the sentence itself is still precise and testable. Options A and D use subjective value words such as lovely and best. Option C makes an unsupported conclusion about health, which requires additional evidence such as disease signs or growth data. Therefore B is the only clearly objective observation.

Related tags

Objective-ObservationScientific-LanguageMeasurementCountingScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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