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Which instrument can observe the temperature of a liquid more accurately?

Answer and explanation

Correct answer: Thermometer

Temperature is the measure of how hot or cold a substance is. A thermometer is an instrument designed to measure temperature and has a scale that allows a reading to be taken. When measuring a liquid, the thermometer is placed carefully in the liquid without letting the bulb rest against the container, and the reading is taken at the appropriate level. This makes the instrument suitable for observing liquid temperature.

Option D is correct because a thermometer is specifically made for measuring temperature. A metre scale measures length, a stopwatch measures time, and a balance measures mass. These instruments may be useful in other investigations, but none is the correct tool for a temperature reading. The word “more accurately” also supports choosing the instrument designed for that quantity rather than estimating temperature by touch or using an unrelated device.

Related tags

ThermometerTemperatureInstrumentAccuracyScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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