Page 62 - Science and Technology Std 3

FOR ONLINE USE ONLY
DO NOT DUPLICATE

Moving the log using a crowbar is simpler than using hands.
This is because a crowbar simplifies work.
FOR ONLINE USE ONLY

Activity 2 Lifting a small tank to the top of a table

Materials A small tank, timber, a stone and a table

Procedure
(i) Make a slope using the timber and a stone.

(ii) Put the small tank at the bottom of the timber. Then,
push the tank to the top of the table. Is it simple to
push the tank to the top of the table? Explain.

(iii) Then, lift up the tank and place it on top of the table.

Is it easy or hard to push it? Which way is simple?
Explain why?

Caring for tools that simplify work

Look at the following pictures and then read the description

that follows.

(a) (b)

Figure 6 Ways of keeping tools

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PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
Science and Technology 3.indd 55 03/08/2019 11:02