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Which statement is a more precise observation?

Answer and explanation

Correct answer: The plant is 25 centimetres tall

Option C is a precise observation because it gives the plant’s height as a measurement: 25 centimetres. A number with a standard unit allows the observation to be checked and compared. “The plant is tall” is only a general description, since tall can mean different things to different people. Exam tip: When possible, make an observation precise by including a number and the correct unit.

Related tags

Scientific ObservationPrecisionMeasurementPlant HeightCentimetreScience SkillsMeasurement And Scientific UnitsExploration: Entering The World Of Secondary Science

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