🔩 The World of Metals and Non-metals
Science – Chapter 4 (Questions & Answers)
Q1. What are metals?
Answer: Metals are substances that are hard, shiny, and good conductors of heat and electricity.
Q2. What are non-metals?
Answer: Non-metals are substances that are generally soft, dull, and poor conductors of heat and electricity.
Q3. What are the properties of metals?
Answer: Metals are malleable, ductile, shiny, and good conductors of heat and electricity.
Q4. What are the properties of non-metals?
Answer: Non-metals are not malleable, not ductile, and are poor conductors.
Q5. What is malleability?
Answer: Malleability is the property of a metal to be beaten into thin sheets.
Q6. What is ductility?
Answer: Ductility is the property of a metal to be drawn into wires.
Q7. Give examples of metals.
Answer: Iron, copper, aluminium, and gold.
Q8. Give examples of non-metals.
Answer: Oxygen, nitrogen, carbon, and sulphur.
Q9. Why are metals important?
Answer: Metals are used in construction, electrical wiring, tools, and machines.