
SAINS 4CK UNIT 8
Authored by Hanis Tasnim
Science
4th Grade
Used 4+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rajah menunjukkan penyiasatan mengenai pengaratan. Apakah kegunaan kalsium klorida kontang?
Menyerap udara
Menyerap wap air
menghasilkan air
Membentuk lapisan pelindung pada klip kertas
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Rajah menunjukkan sebilah kapak. Mengapakah kapak berkarat jika dibiarkan dalam jangka masa yang lama?
Kehadiran air dan udara
Kehadiran air
Kehadiran udara
Kapak dibuat daripada tembaga.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Perhatikan rajah di bawah. Klip kertas yang manakah akan berkarat selepas seminggu?
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Rajah menunjukkan aktiviti mengecat pintu pagar besi. Mengapa pintu pagar besi perlu dicat?
Supaya pintu pagar tahan lebih lama.
Lapisan cat dapat menghalang air dan udara menyentuh permukaan besi.
Supaya pintu pagar kelihatan berwarna-warni.
Meningkatkan kos penjagaan pintu pagar
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah menunjukkan sekaki payung . Antara bahagian berlabel P, Q, R dan S, yang manakah boleh berkarat?
P
Q
R
S
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Klip kertas dalam rajah dibiarkan selama sebulan. Apakah yang akan berlaku pada klip kertas itu?
Tiada perubahan.
Jisim klip kertas berkurangan.
Lapisan berwarna keperangan terbentuk pada permukaan klip kertas
Air bertukar menjadi keruh.
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Paku dalam tabung uji manakah tidak berkarat?
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