WEEK 2

Topic: Measurement of mass

Subtitle: Mass

Objectives: At the end of this lesson, pupils should be able to:

1. Define mass
2. State two instruments for measuring mass
3. State the unit of mass

Instructional material: Kitchen Scale, weighing balance and beam balance

CONTENT

Mass is the amount of weight a body contains. We can use the following to know the mass of an object; beam balance, kitchen scale, spring balance and bathroom scale.

Beam balance                    Kitchen scale

We know the main standard unit of mass or weight is kilogram which we write in short as ‘kg’. The 1000th part of this kilogram is gram which is written in short as ‘g’. Thus 1000 gram = 1kilogram and 1 kilogram = 1000 gram

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