📘 Class 8 Science – Chapter 4
Materials: Metals and Non-Metals

⭐ Important Exam Questions (VSA / SA / LA)

🔹 A. Very Short Answer Questions (1 Mark)

1. Name one metal that is liquid at room temperature.
2. Which non-metal is essential for respiration?
3. Write one use of aluminium.
4. What is rust?
5. Which metal is used for electric wires?
6. Name a non-metal used in fertilizers.
7. Which gas is released when metals react with acids?
8. What is corrosion?
9. Name the coating used to prevent rusting.
10. Which non-metal is used in pencil lead?

🔹 B. Short Answer Questions – I (2 Marks)

1. Write any two physical properties of metals.
2. Write two differences between metals and non-metals.
3. Why are metals used for making cooking utensils?
4. What happens when iron reacts with oxygen and water?
5. Name two uses of copper.
6. Why sulphur is a non-metal?
7. What is galvanisation?
8. Why is gold used for making jewellery?

🔹 C. Short Answer Questions – II (3 Marks)

1. Explain corrosion with an example.
2. Write three uses of non-metals.
3. Describe three methods to prevent rusting.
4. Why is aluminium used in aircraft manufacturing?
5. What happens when a metal reacts with an acid? Explain.

🔹 D. Long Answer Questions (5 Marks)

1. Explain physical and chemical properties of metals with examples.
2. Differentiate between metals and non-metals based on:
   • Physical properties
   • Chemical properties
3. Explain rusting of iron:
   • Conditions required
   • Methods to prevent rusting
4. Explain the uses of metals and non-metals in daily life.

🧠 Memory Tip:
Rusting needs both air and water.
Remove any one → No rust.

CBSE • NCERT • Class 8 Science