Practice Worksheet : Chapter 6 – Materials Around Us Class 6 Science

(CBSE Class 6 Science – Curiosity Book)

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Class 6 Science – Chapter 6 Materials Around Us – Practice Worksheet

Complete Worksheet for Class 6 Science – Chapter 6: Materials Around Us (Curiosity Textbook).

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Class Test – Chapter 6: Materials Around Us – Practice Worksheet

Total Marks: 20
Time: 40 Minutes
Class: 6
Subject: Science

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SET 1 – Class Test (20 Marks)

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Materials that shine when light falls on them are called ____________.
2. The space occupied by matter is called ____________.
3. Water, glass and air are examples of ____________ materials.
4. Sand and chalk powder are ____________ in water.

Section B – True or False (1 × 4 = 4 marks)

5. All metals are non-lustrous.
6. Sawdust floats on water as it does not dissolve.
7. Cardboard is an opaque material.
8. Mass is measured in grams and kilograms.

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Aluminium foil	(a) Soft
10. Pillow	(b) Hard
11. Glass tumbler	(c) Lustrous
12. Brick	(d) Transparent

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why does sugar disappear in water?
14. Define matter.

Section E – Short Answer (2 × 2 = 4 marks)

15. What are soluble and insoluble materials? Give examples.
16. Why do we use different materials to make different objects?

ANSWERS – SET 1 – Class Test

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Materials that shine when light falls on them are called ____________.
   Answer: lustrous
2. The space occupied by matter is called ____________.
   Answer: volume
3. Water, glass and air are examples of ____________ materials.
   Answer: transparent
4. Sand and chalk powder are ____________ in water.
   Answer: insoluble

Section B – True or False (1 × 4 = 4 marks)

5. All metals are non-lustrous.
   Answer: False
6. Sawdust floats on water as it does not dissolve.
   Answer: True
7. Cardboard is an opaque material.
   Answer: True
8. Mass is measured in grams and kilograms.
   Answer: True

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Aluminium foil	(a) Soft
10. Pillow	(b) Hard
11. Glass tumbler	(c) Lustrous
12. Brick	(d) Transparent

Answer:

9. Aluminium foil → (c) Lustrous
10. Pillow → (a) Soft
11. Glass tumbler → (d) Transparent
12. Brick → (b) Hard

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why does sugar disappear in water?
    Answer: Because sugar dissolves completely in water.
14. Define matter.
    Answer: Anything that occupies space and has mass is called matter.

Section E – Short Answer (2 × 2 = 4 marks)

15. What are soluble and insoluble materials? Give examples.
    Answer: Materials that dissolve in water are soluble (e.g., salt), while those that do not dissolve are insoluble (e.g., sand).
16. Why do we use different materials to make different objects?
    Answer: Because different materials have different properties suitable for different purposes.

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SET 2 – Class Test (20 Marks)

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Objects can be grouped based on their ____________.
2. Matter has ____________ and occupies space.
3. Objects made of metal generally have ____________.
4. Wood and cardboard are ____________ materials.

Section B – True or False (1 × 4 = 4 marks)

5. Transparent materials do not allow light to pass through.
6. Iron, copper and zinc are metals.
7. Paper is a non-lustrous material.
8. Pebbles are lighter than water.

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Water	(a) Hard
10. Eraser	(b) Transparent
11. Stone	(c) Soluble
12. Salt	(d) Soft

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why is glass used for making windows?
14. Define soluble substances.

Section E – Short Answer (2 × 2 = 4 marks)

15. List three properties used to classify materials.
16. Explain hardness and softness with examples.

ANSWERS – SET 2

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Objects can be grouped based on their ____________.
   Answer: properties
2. Matter has ____________ and occupies space.
   Answer: mass
3. Objects made of metal generally have ____________.
   Answer: lustre
4. Wood and cardboard are ____________ materials.
   Answer: opaque

Section B – True or False (1 × 4 = 4 marks)

5. Transparent materials do not allow light to pass through.
   Answer: False
6. Iron, copper and zinc are metals.
   Answer: True
7. Paper is a non-lustrous material.
   Answer: True
8. Pebbles are lighter than water.
   Answer: False

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Water	(a) Hard
10. Eraser	(b) Transparent
11. Stone	(c) Soluble
12. Salt	(d) Soft

Answer:

9. Water → (b) Transparent
10. Eraser → (d) Soft
11. Stone → (a) Hard
12. Salt → (c) Soluble

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why is glass used for making windows?
    Answer: Because glass is transparent and allows light to pass through.
14. Define soluble substances.
    Answer: Substances that dissolve fully in water are called soluble.

Section E – Short Answer (2 × 2 = 4 marks)

15. List three properties used to classify materials.
    Answer: Lustre, hardness, transparency.
16. Explain hardness and softness with examples.
    Answer: Hard materials cannot be scratched easily (e.g., iron). Soft materials can be easily scratched or pressed (e.g., rubber).

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SET 3 – Class Test (20 Marks)

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Materials that do not allow light to pass through are called ____________.
2. ____________ is measured in litres and millilitres.
3. Materials that can be easily scratched are called ____________.
4. Chalk powder is ____________ in water.

Section B – True or False (1 × 4 = 4 marks)

5. Metals lose their shine when exposed to air and moisture.
6. Cloth is a suitable material for making a tumbler.
7. Air is matter.
8. Aluminium and copper are lustrous metals.

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Butter paper	(a) Hard
10. Metal key	(b) Insoluble
11. Sand	(c) Translucent
12. Wood	(d) Hard to scratch

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why is a wooden door opaque?
14. Write one difference between transparent and translucent materials.

Section E – Short Answer (2 × 2 = 4 marks)

15. What happens when sawdust is mixed with water? Explain.
16. Why should we classify materials?

ANSWERS – SET 3

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Materials that do not allow light to pass through are called ____________.
   Answer: opaque
2. ____________ is measured in litres and millilitres.
   Answer: volume
3. Materials that can be easily scratched are called ____________.
   Answer: soft
4. Chalk powder is ____________ in water.
   Answer: insoluble

Section B – True or False (1 × 4 = 4 marks)

5. Metals lose their shine when exposed to air and moisture.
   Answer: True
6. Cloth is a suitable material for making a tumbler.
   Answer: False
7. Air is matter.
   Answer: True
8. Aluminium and copper are lustrous metals.
   Answer: True

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Butter paper	(a) Hard
10. Metal key	(b) Insoluble
11. Sand	(c) Translucent
12. Wood	(d) Hard to scratch

Answer:

9. Butter paper → (c) Translucent
10. Metal key → (d) Hard to scratch
11. Sand → (b) Insoluble
12. Wood → (a) Hard

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why is a wooden door opaque?
    Answer: Because it does not allow light to pass through.
14. Write one difference between transparent and translucent materials.
    Answer: Transparent materials allow clear vision; translucent materials allow partial light but unclear vision.

Section E – Short Answer (2 × 2 = 4 marks)

15. What happens when sawdust is mixed with water?
    Answer: Sawdust floats and does not dissolve in water.
16. Why should we classify materials?
    Answer: To study their properties and understand their uses easily.

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SET 4 – Class Test (20 Marks)

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. The property that decides whether an object can be scratched is called ____________.
2. Honey ____________ in water.
3. ____________ materials allow light to pass partially.
4. Objects made of clay and iron were mentioned in ____________ (ancient text).

Section B – True or False (1 × 4 = 4 marks)

5. Glass is an opaque material.
6. Opaque materials do not allow light to pass through.
7. Plastic is a non-lustrous material.
8. Volume is the amount of space occupied by matter.

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Glass	(a) Rough
10. Rubber	(b) Transparent
11. Stone	(c) Soft
12. Jute	(d) Hard

Section D – Very Short Answer (2 × 2 = 4 marks)

13. What are opaque materials?
14. Why do metals shine?

Section E – Short Answer (2 × 2 = 4 marks)

15. Write two uses of classifying materials in our daily life.
16. Explain with an example why some materials float on water.

ANSWERS – SET 4

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. The property that decides whether an object can be scratched is called ____________.
   Answer: hardness
2. Honey ____________ in water.
   Answer: dissolves partially
3. ____________ materials allow light to pass partially.
   Answer: translucent
4. Objects made of clay and iron were mentioned in ____________(ancient text).
   Answer: Rasaratnasamuchchaya

Section B – True or False (1 × 4 = 4 marks)

5. Glass is an opaque material.
   Answer: False
6. Opaque materials do not allow light to pass through.
   Answer: True
7. Plastic is a non-lustrous material.
   Answer: True
8. Volume is the amount of space occupied by matter.
   Answer: True

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Glass	(a) Rough
10. Rubber	(b) Transparent
11. Stone	(c) Soft
12. Jute	(d) Hard

Answer:

9. Glass → (b) Transparent
10. Rubber → (c) Soft
11. Stone → (d) Hard
12. Jute → (a) Rough

Section D – Very Short Answer (2 × 2 = 4 marks)

13. What are opaque materials?
    Answer: Materials that do not allow any light to pass through.
14. Why do metals shine?
    Answer: Because they have lustre.

Section E – Short Answer (2 × 2 = 4 marks)

15. Write two uses of classifying materials in our daily life.
    Answer: Helps in storage, selection of proper materials for making objects.
16. Explain with an example why some materials float on water.
    Answer: Materials like wood float because they are less dense than water.

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SET 5 – Class Test (20 Marks)

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Materials like metals that shine are called ____________.
2. Sand is ____________ in water.
3. Air, water and glass are ____________ examples.
4. The quantity of matter is measured as ____________.

Section B – True or False (1 × 4 = 4 marks)

5. A pillow is a hard object.
6. Iron is harder than rubber.
7. Vinegar mixes completely with water.
8. Opaque materials allow full light to pass.

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Clay	(a) Soluble
10. Salt	(b) Soft
11. Metal spoon	(c) Lustrous
12. Honey	(d) Thick liquid

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why do some objects sink in water?
14. What is the SI unit of mass?

Section E – Short Answer (2 × 2 = 4 marks)

15. Describe the difference between lustrous and non-lustrous materials.
16. Why does chalk remain undissolved in water?

ANSWERS – SET 5

Section A – Fill in the Blanks (1 × 4 = 4 marks)

1. Materials like metals that shine are called ____________.
   Answer: lustrous
2. Sand is ____________ in water.
   Answer: insoluble
3. Air, water and glass are ____________ examples.
   Answer: transparent
4. The quantity of matter is measured as ____________.
   Answer: mass

Section B – True or False (1 × 4 = 4 marks)

5. A pillow is a hard object.
   Answer: False
6. Iron is harder than rubber.
   Answer: True
7. Vinegar mixes completely with water.
   Answer: True
8. Opaque materials allow full light to pass.
   Answer: False

Section C – Match the Following (1 × 4 = 4 marks)

Column I	Column II
9. Clay	(a) Soluble
10. Salt	(b) Soft
11. Metal spoon	(c) Lustrous
12. Honey	(d) Thick liquid

Answer:

9. Clay →(b) Soft
10. Salt → (a) Soluble
11. Metal spoon → (c) Lustrous
12. Honey → (d) Thick liquid

Section D – Very Short Answer (2 × 2 = 4 marks)

13. Why do some objects sink in water?
    Answer: Because they are denser or heavier than water.
14. What is the SI unit of mass?
    Answer: kilogram (kg)

Section E – Short Answer (2 × 2 = 4 marks)

15. Describe the difference between lustrous and non-lustrous materials.
    Answer: Lustrous materials shine (e.g., copper); non-lustrous materials do not shine (e.g., wood).
16. Why does chalk remain undissolved in water?
    Answer: Because chalk is insoluble in water.

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