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# MEASUREMENT AND CHEMICAL FORMULAE

CONTENT

1. Meaning of Measurement
2. Instruments for Measurement
3. Chemical Formulae

## Meaning of Measurement

This is the processes of measuring size, weight, length or capacity of objects or substances. Use your ruler to measure the length of your note book.

## Instruments for Measurement

In the olden days our fore fathers were using hands, feet, cock crow rope etc. to measure but today there are different instruments for measurement, which depends on the parameter to be measured. The unit attached to every parameter is called S.I unit (international system unit).

Measurement of Length:  the S.I unit of length is meter (m). Instrument for measuring length include ruler, tape, Vernier calipers and micrometer screw gauge used to measure diameter of objects like wire.

Measurement of Mass: The S.I unit of mass is kilogramme (kg). Mass is the quantity of matter which an object contains. The instruments for measuring mass are beam balances.

Measurement of Time: The S.I unit of time is second(s).

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Lesson tags: Basic Science Lesson Notes, Basic Science Objective Questions, JSS2 Basic Science, JSS2 Basic Science Evaluation Questions, JSS2 Basic Science Evaluation Questions Second Term, JSS2 Basic Science Objective Questions, JSS2 Basic Science Objective Questions Second Term, JSS2 Basic Science Second Term
Back to: Basic Science – JSS2 (Upper Basic 8) > Second Term

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