NCERT Solutions for Class 6 Science Chapter 6: Materials Around Us (Curiosity)

Let Us Enhance Our Learning (pages 119-121)

Question 1. Visit your kitchen and observe how your parents have organised various edibles. Can you suggest a better sorting method? Write it in your notebook.
Answer: Group pulses like moong dal, chana dal, urad dal, and arhar dal together. Keep cereals such as rice, dalia, wheat flour, and maize flour in a separate group. Spices including red chilli powder, salt, clove, black pepper, ajwain, cumin (jeera), coriander seeds (dhania), turmeric powder, and garam masala should be organised together. Cooking oils and ghee, such as mustard oil, soybean oil, olive oil, and cow ghee, should be stored in another group. Finally, place jams and squashes together.

Question 2. Unscramble the letters (Column I) and match them with their properties (Column II).

Answer:

Question 3. The containers which are used to store materials in shops and at home are usually transparent. Give your reasons for this.
Answer: Containers are typically transparent so that the contents can be easily seen. This helps in quickly identifying and locating the materials stored inside.

Question 4. State whether the statements given below are True [T] or False [F], Correct the False statements).
(i) Wood is translucent while glass is opaque.
Answer: False
Wood is opaque while glass is transparent.

(ii) Aluminium foil has lustre while an eraser does not.
Answer: True

(iii) Sugar dissolves in water whereas sawdust does not.
Answer: True

(iv) An apple is a matter because it occupies no space and has mass.
Answer: False
An apple is a matter because it occupies space and has mass.

Question 5. We see chairs made up of various materials, such as wood, iron, plastic, bamboo, cement, and stones. Following are some desirable properties of materials which can be used to make chairs. Which materials used to make chairs fulfil these properties the most?
(i) Hardness (does not bend or shake on sitting even after long use).
(ii) Lightweight (easy to lift or to take from one place to another).
(iii) Does not feel very cold when sitting during winter.
(iv) Can be cleaned regularly and made to look new even after long use.
Answer:
(i) Iron, cement and stones
(ii) Plastic and bamboo
(in) Wood and bamboo
(iv) Plastic, iron, cement and stones

Question 6. You need to have containers for collection of (i) food waste, (ii) broken glass, and (iii) wastepaper. Which materials will you choose for containers of these types of waste? What properties of materials do you need to think of?
Answer: For (i) food waste, use plastic containers that are leak-proof and non-reactive to food. For (ii) broken glass, choose hard plastic or metal containers to prevent cuts and ensure safety. For (iii) waste paper, opt for lightweight and durable containers. The properties to consider are the container's resistance to leakage, strength, and durability based on the type of waste.

Question 7. Air is all around us but does not hinder us from seeing each other. Whereas, if a wooden door comes in between, we cannot see each other. It is because air is ________ and ________ the wooden door is ______
Choose the most appropriate option:
(i) transparent, opaque
(ii) translucent, transparent
(iii) opaque, translucent
(iv) transparent, translucent
Answer: (i) transparent, opaque

Question 8. Imagine you have two mysterious materials, X and Y. When you try to press material X, it feels rigid and does not change its shape easily. On the other hand, material Y easily changes its shape when you press it. Now, when you mix both materials in water, only material X dissolves completely, while material Y remains unchanged. What can materials X and Y be? Can you identify whether material X is hard or soft? What about material Y? Justify your answer.
Answer: Material X could be sugar crystals, and material Y could be a rubber block. Material X is hard because it does not deform easily and dissolves in water. Material Y is soft as it changes shape under pressure but does not dissolve in water.

Question 9.
(i) Who am I? Identify me on the basis of the given properties.

(a) I have lustre.
(b) I can be easily compressed.
(c) I am hard and soluble in water.
(d) You cannot see clearly through me.
(e) I have mass and volume but you cannot see me.

(ii) Make your own Who am I?’
Answer:
(i) (a) steel
(b) rubber
(c) sugar
(d) cardboard or plywood
(e) air

(ii) (a) You can see clearly through me
(b) I am soft
(c) I am non-lustrous
(d) I am liquid and insoluble in water
(e) I cannot be compressed easily.

Question 10. You are provided with the following materials—vinegar, honey, mustard oil, water, glucose, and wheat flour.
Make any two pairs of materials where one material is soluble in the other. Now, make two pairs of materials where one material remains insoluble in the other material.
Answer:
Soluble pairs
(i) Water and glucose
(ii) Water and vinegar 

Insoluble pairs
(i) Water and mustard oil
(ii) Water and wheat flour

Benefits of NCERT Solutions for Class 6 Science Chapter 6 Materials Around Us

1. Helps students understand the properties of materials they interact with daily, like why some are hard or soft, shiny or dull.

2. Learning how materials are classified and their uses in real life, like why glass is used for windows and clay for pottery.

3. Teaches students how to group objects based on similarities and differences, sharpening their classification skills.

4. Encourages understanding of sustainable materials and the historical significance of materials like clay and terracotta.

Important Study Material Links for Science Chapter 6 Class 6 Materials Around Us 

Conclusion

Class 6 Science Chapter 6 Materials Around Us provides a comprehensive look at how various materials are used in everyday life, from ancient pottery to modern objects. By understanding the properties of materials, students can better appreciate how objects are made and used. This knowledge not only enhances scientific thinking but also builds awareness about the environment and the sustainable use of resources.

Chapter-wise NCERT Solutions Class 6 Science 

After familiarising yourself with the Class 6 Science Chapter 6 Question Answers, you can access comprehensive NCERT Solutions from all Class 6 Science textbook chapters.

Related Important Links for Class 6 Science 

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