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Which observation should be made more precise?

Answer and explanation

Correct answer: The plant is very tall

‘The plant is very tall’ is vague because the word ‘very’ does not give a measurable value. It should be made precise by recording the plant’s height in a suitable unit, for example, 25 cm. The other options already include numerical measurements of time, temperature, or volume. Exam tip: In scientific observations, use numbers and standard units wherever possible.

Related tags

Scientific ObservationPrecisionMeasurementUnitsPlant GrowthMeasurement And Scientific UnitsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary Science

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