Page 72 - Science and Technology Std 3

FOR ONLINE USE ONLY
DO NOT DUPLICATE

Questions
1. How much sugar was Asha sent to buy?
FOR ONLINE USE ONLY
2. Why did Asha’s mother go to the shop?
3. Which device did Angela use to weigh the sugar at first?

Exercise

Fill in the blanks.

1. Write three standard devices which are used to measure
mass _________, _________ and _________.

2. _________ is the device used to measure the length of
a football playground.

3. _____ is the device used to measure the mass of sugar.

4. Centimetre, metre and kilometre are standard units
for measuring _________.

5. List three non-standard measurements _________,
_________ and ________.

Answer the following questions.
6. Explain the advantages of using standard measurements.

7. Explain the effects of using non-standard measurements.

Vocabulary

Commodities things to buy and sell

Error the difference between measured value and
true value

Length the measurement of a given distance

Volume space occupied by something

Mass a measurement of how heavy an object is

65

PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
Science and Technology 3.indd 65 03/08/2019 11:02