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Why is the same unit used in observations?

Answer and explanation

Correct answer: To compare measurements accurately

Using the same unit allows measurements from different objects or observations to be compared directly and accurately. For example, two lengths are easy to compare when both are written in centimetres. Merely making a number look larger or smaller does not change the actual measurement, so option B is incorrect. Exam tip: convert all measurements to the same unit before comparing them.

Related tags

MeasurementStandard UnitsScientific ObservationComparisonScience SkillsScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary Science

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