Page 70 - Science and Technology Std 3

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Measuring mass using standard measurements

Look at the following picture and then read the description
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that follows.

Figure 6 Using a weighing scales

The picture in Figure 6 shows a boy and a girl measuring the
mass of sugar using weighing scales.

Activity 6 Measuring mass

Materials a tin, a bag, sugar, and two weighing scales

Procedure

(i) Weigh one kilogram of sugar using a weighing scale.

(ii) Let your friend measure the same mass using a another
weighing scale.

Is there any difference? Give reasons.

Devices that are used to measure mass include a beam
balance, a kitchen scale and a digital scale. The results of

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PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
Science and Technology 3.indd 63 03/08/2019 11:02