Sorting Materials into Groups – Class 6 Science MCQs
Sorting Materials into Groups – Class 6 Science MCQs
Class: 6 | Subject: Science
Section 3: Materials Around Us
Topic: Sorting Materials into Groups
Based on: CBSE Board Examination Pattern
Section 3: Materials Around Us
Topic: Sorting Materials into Groups
Based on: CBSE Board Examination Pattern
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 6 Science examination standard.
1. Why do we need to group materials?
Answer: B
Grouping materials helps us study similarities and differences in properties. This makes identification, usage, and scientific study easier.
Grouping materials helps us study similarities and differences in properties. This makes identification, usage, and scientific study easier.
2. Which property is used to group materials?
Answer: D
Materials are grouped based on multiple properties such as colour, hardness, transparency, solubility, and conductivity.
Materials are grouped based on multiple properties such as colour, hardness, transparency, solubility, and conductivity.
3. Which of the following is a metal?
Answer: B
Iron is a metal. Metals are generally hard, shiny, and good conductors of heat and electricity.
Iron is a metal. Metals are generally hard, shiny, and good conductors of heat and electricity.
4. Materials that allow light to pass through them are called:
Answer: B
Transparent materials like glass allow light to pass completely, so objects behind them are clearly visible.
Transparent materials like glass allow light to pass completely, so objects behind them are clearly visible.
5. Example of a translucent material:
Answer: B
Translucent materials allow partial light to pass. Butter paper lets light through but objects are not clearly visible.
Translucent materials allow partial light to pass. Butter paper lets light through but objects are not clearly visible.
6. Which material is soluble in water?
Answer: B
Salt dissolves completely in water forming a solution, hence it is soluble.
Salt dissolves completely in water forming a solution, hence it is soluble.
7. Insoluble substance example:
Answer: C
Sand does not dissolve in water and settles down, so it is insoluble.
Sand does not dissolve in water and settles down, so it is insoluble.
8. Objects that float on water are:
Answer: B
Floating depends on density. Materials lighter than water float.
Floating depends on density. Materials lighter than water float.
9. Which will sink in water?
Answer: C
Stone is denser than water, so it sinks.
Stone is denser than water, so it sinks.
10. Metals are generally:
Answer: C
Lustre means shine. Metals like gold and silver are shiny.
Lustre means shine. Metals like gold and silver are shiny.
11. Which is not a property of wood?
Answer: C
Wood is an insulator; it does not conduct electricity.
Wood is an insulator; it does not conduct electricity.
12. Material used for electric wires:
Answer: C
Copper is a very good conductor of electricity.
Copper is a very good conductor of electricity.
13. Which is opaque?
Answer: C
Opaque materials block light completely.
Opaque materials block light completely.
14. Chalk is:
Answer: B
Chalk does not dissolve; it forms suspension.
Chalk does not dissolve; it forms suspension.
15. Oil in water will:
Answer: C
Oil is lighter and insoluble, so it floats.
Oil is lighter and insoluble, so it floats.
16. Sponge is an example of:
Answer: B
Soft materials can be compressed easily like sponge and cotton.
Soft materials can be compressed easily like sponge and cotton.
17. Glass is used for windows because it is:
Answer: B
Transparency allows light to enter rooms.
Transparency allows light to enter rooms.
18. Which is a non-metal?
Answer: C
Coal is a non-metal; it is dull and brittle.
Coal is a non-metal; it is dull and brittle.
19. Rubber is:
Answer: B
Rubber does not allow electricity to pass, so it is used as wire covering.
Rubber does not allow electricity to pass, so it is used as wire covering.
20. Sorting materials helps in:
Answer: D
Grouping materials makes study, identification, and practical use systematic and convenient.
Grouping materials makes study, identification, and practical use systematic and convenient.