Everything is made from materials — wood, metal, plastic, glass, fabric, rock and more. Each material has properties, like being hard, bendy, see-through or waterproof, which make it right for some jobs and wrong for others.
Apa yang akan dipelajari anak anda
- Name common materials and what objects are made from
- Describe properties such as hard, soft, bendy, waterproof and see-through
- Choose a suitable material for a job and explain why
- Know that some materials are natural and some are made by people
The right material for the job
A chocolate teapot would melt, and a paper umbrella would get soggy! Scientists and engineers choose materials by testing their properties: glass for windows because it is see-through, metal for pans because it lets heat through, and rubber for tyres because it is bendy and grippy.
Contoh soalan
Berikut ialah beberapa soalan seperti dalam misi pertama. Bolehkah anda menjawabnya?
1. Which material is hard and used to build walls?
🧱- Rubber
- Stone
- Wool
- Paper
Tunjuk jawapan
Jawapan: Stone. Stone is hard and strong, so it’s great for walls.
2. What are most spoons made of?
🥄- Paper
- Glass
- Metal
- Wool
Tunjuk jawapan
Jawapan: Metal. Metal spoons are strong and easy to clean.
3. True or false? Glass is see-through.
Tunjuk jawapan
Jawapan: Betul. Glass lets light through, so we can see through it.
Tip untuk orang dewasa
- Go on a materials hunt at home: find something wooden, metal, plastic and glass.
- Test which materials are waterproof by dripping water on paper, foil, fabric and plastic.