Extra 40 Multiple Choice Questions (MCQs) with answers from the CBSE Class 6 Science chapter:4 "Sorting Materials into Groups."

1. Which of the following is a natural material?

a) Plastic
b) Iron
c) Wood
d) Glass
✅ Answer: c) Wood

 

2. Which material is soluble in water?

a) Sand
b) Sugar
c) Chalk powder
d) Plastic
✅ Answer: b) Sugar

 

3. Which of the following is a good conductor of electricity?

a) Wood
b) Copper
c) Rubber
d) Plastic
✅ Answer: b) Copper

 

4. Which material is transparent?

a) Wood
b) Cardboard
c) Glass
d) Iron
✅ Answer: c) Glass

 

5. Which of the following is an example of an opaque object?

a) Air
b) Water
c) Cardboard
d) Glass
✅ Answer: c) Cardboard

 

6. Which of the following is a liquid at room temperature?

a) Iron
b) Wood
c) Milk
d) Copper
✅ Answer: c) Milk

 

7. Which property of materials helps us to separate tea leaves from tea using a strainer?

a) Transparency
b) Hardness
c) Solubility
d) Size
✅ Answer: d) Size

 

8. Which of the following materials is magnetic?

a) Aluminium
b) Plastic
c) Iron
d) Wood
✅ Answer: c) Iron

 

9. Which of the following is a soft material?

a) Stone
b) Sponge
c) Iron
d) Glass
✅ Answer: b) Sponge

 

10. What is the process of grouping materials based on similarities and differences called?

a) Evaporation
b) Filtration
c) Classification
d) Boiling
✅ Answer: c) Classification

 

11. Which of the following materials is flexible?

a) Stone
b) Glass
c) Rubber
d) Iron
✅ Answer: c) Rubber

 

12. Which property is used to classify materials as soluble or insoluble?

a) Conductivity
b) Hardness
c) Solubility
d) Transparency
✅ Answer: c) Solubility

 

13. Which of the following materials is insoluble in water?

a) Salt
b) Sugar
c) Sand
d) Lemon juice
✅ Answer: c) Sand

 

14. Which of the following is a transparent object?

a) Mirror
b) Glass
c) Book
d) Cardboard
✅ Answer: b) Glass

 

15. Which of the following is a poor conductor of heat?

a) Aluminium
b) Copper
c) Wood
d) Silver
✅ Answer: c) Wood

 

16. Which of the following materials floats on water?

a) Iron nail
b) Stone
c) Cotton
d) Brick
✅ Answer: c) Cotton

 

17. Which of the following materials is NOT magnetic?

a) Iron
b) Cobalt
c) Wood
d) Nickel
✅ Answer: c) Wood

 

18. Which of the following materials is soluble in water?

a) Chalk powder
b) Sugar
c) Oil
d) Sawdust
✅ Answer: b) Sugar

 

19. Which type of material allows light to pass through completely?

a) Opaque
b) Transparent
c) Translucent
d) None of the above
✅ Answer: b) Transparent

 

20. Which material is used to make electrical wires?

a) Plastic
b) Rubber
c) Copper
d) Wood
✅ Answer: c) Copper

 

21. Which property determines whether a material can be stretched into a wire?

a) Hardness
b) Ductility
c) Conductivity
d) Transparency
✅ Answer: b) Ductility

 

22. Which of the following is an opaque material?

a) Water
b) Plastic sheet
c) Mirror
d) Air
✅ Answer: c) Mirror

 

23. What happens when sugar is added to water?

a) It sinks
b) It dissolves
c) It floats
d) It reacts
✅ Answer: b) It dissolves

 

24. Which of the following materials is hard?

a) Rubber
b) Stone
c) Cotton
d) Sponge
✅ Answer: b) Stone

 

25. Which material is commonly used for making kitchen utensils?

a) Rubber
b) Cotton
c) Steel
d) Glass
✅ Answer: c) Steel

 

26. Which of the following materials is NOT flexible?

a) Plastic
b) Glass
c) Rubber
d) Cloth
✅ Answer: b) Glass

 

27. Which of the following materials is used for making furniture?

a) Cotton
b) Wood
c) Water
d) Salt
✅ Answer: b) Wood

 

28. Which property helps in separating oil from water?

a) Transparency
b) Hardness
c) Density
d) Conductivity
✅ Answer: c) Density

 

29. Which of the following materials is used in making clothes?

a) Cotton
b) Iron
c) Glass
d) Plastic
✅ Answer: a) Cotton

 

30. Which of these objects is translucent?

a) Mirror
b) Water
c) Butter paper
d) Wood
✅ Answer: c) Butter paper

 

31. Which of these materials is used for making electrical insulators?

a) Copper
b) Aluminium
c) Plastic
d) Iron
✅ Answer: c) Plastic

 

32. What happens when iron is exposed to moisture and air?

a) It dissolves
b) It rusts
c) It burns
d) It melts
✅ Answer: b) It rusts

 

33. Which of the following is an example of a liquid?

a) Sugar
b) Glass
c) Water
d) Rubber
✅ Answer: c) Water

 

34. Which material is used for making windowpanes?

a) Rubber
b) Cotton
c) Glass
d) Wood
✅ Answer: c) Glass

 

35. What type of material allows only some light to pass through?

a) Transparent
b) Translucent
c) Opaque
d) None of the above
✅ Answer: b) Translucent

 

36. Which of the following is NOT a property of metals?

a) Good conductor of electricity
b) Hard and strong
c) Non-magnetic
d) Malleable
✅ Answer: c) Non-magnetic

 

37. Which of these materials can be compressed easily?

a) Stone
b) Iron
c) Sponge
d) Glass
✅ Answer: c) Sponge

 

38. Which of these objects is an example of a translucent material?

a) Clear glass
b) Plastic sheet
c) Butter paper
d) Wooden door
✅ Answer: c) Butter paper

 

39. Which material is best for making raincoats?

a) Cotton
b) Rubber
c) Wool
d) Silk
✅ Answer: b) Rubber

 

40. Which material is commonly used in making ropes?

a) Silk
b) Cotton
c) Jute
d) Plastic
✅ Answer: c) Jute