Objects Production
Primary 4 · Science and Elementary Technology
Objects Production
Lesson 5 of 5
12 min
Let's begin
Ishimwe left his exercise book on the grass during break. Then it rained. When he came back, the pages were wet and the ink had run. "Now I must copy all my notes again," he sighed.
Everything we own lasts longer when we look after it. This is called maintenance.
Maintenance means keeping an object clean, safe and working well, and repairing it before a small problem becomes a big one.
| Object | How to look after it |
|---|---|
| Books and exercise books | Cover them, keep them dry, turn pages gently, do not write on the covers. |
| Pens, rulers, school bags | Keep them in a pencil case or bag; sew a torn bag before the hole grows. |
| Laptops and tablets | Keep them away from water, dust and food; carry them with two hands; shut them down properly. |
| Metal tools (hoe, pliers) | Clean off soil, dry them and store them indoors. Water and air make iron form rust, a brown flaky layer that weakens it. A little oil helps stop rust. |
| Wood, sticks and banana fibre | Keep them dry so they do not rot or go mouldy; tighten loose joints. |
| Clay objects | Handle them gently and put them where they cannot fall. |
| Wire toys | Re-tie loose joints and bend back any sharp end that sticks out. |
Tip
Clean, check, repair, store
Do these four things and your things will serve you for years.
Try each one first, then tap Show answer to check.
What is maintenance?
Answer: Keeping objects clean, safe and working well, and repairing them when needed.
Mutesi's father leaves his hoe outside in the rain every night. What will happen to it, and what should he do?
Answer: The iron will rust and become weak. He should clean it, dry it and store it indoors.
A classroom desk has a loose leg. What should you do?
Answer: Tell the teacher at once so it can be repaired before somebody gets hurt.
What you learned today
Sources and credits
Written by Ganzaa.
The exercises (Try it yourself and the practice questions) are written by Ganzaa.
Quick check
When we look after our objects, families and schools save money.
