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Sorting Materials into Groups

NCERT Solution

Question: 1. Name the objects which can be made from iron and wood.

Answer: Wooden items: window, door, sofa, chair, etc.

Iron items: Car, truck, bridge, utensil, grill, etc.

Question: 2. Select those objects from the following which shine.

Glass bowl, plastic toy, steel spoon, cotton shirt.

Answer: Glass bowl and steel spoon

Question: 3. Match the objects given below with the materials from which they could be made. Remember, an object could be made from more than one material and a given material could be used for making many objects.

NCERT Solution - Sorting of Materials into Groups - Class 6

Question: 4. State whether the statements given below are True or false.

(a) Stone is transparent, while glass is opaque. (F)

(b) A notebook has luster, while eraser does not. (F)

(c) Chalk dissolves in water. (F)

(d) A piece of wood floats on water. (T)

(e) Oil mixes with water. (F)

(f) Sand settles down in the water. (T)

(g) Vinegar dissolves in water. (T)

Question: 5. Given below are names of some objects and materials.

Water, basketball, orange, sugar, globe, apple and earthen pitcher.

Group them as:

(a) Round shaped and other shapes.

Answer: Round-shaped: Basketball, orange, globe and earthen pitcher.

(b) Eatables and non eatables

Answer: Eatables: Water, orange, sugar and apple.

Non-eatables: Basketball, globe and earthen pitcher.

Question: 6. List all items known to you that float on water. Check and see if they will float on an oil or kerosene.

Answer: Items; like wood, cork, Styrofoam, etc. float on water as well as on oil.

Question: 7. Find the odd one out from the following.

(a) Chair, bed, table, baby, cupboard

Answer: Baby is a living being, while others are non-living.

(b) Rose, jasmine, Boat, Marigold, Lotus.

Answer- Boat is a mode of transport, while others are flowers.

(c) Aluminium, iron, copper, silver, sand.

Answer: Sand is non-metal, while others are metals.

(d) Sugar, Salt, sand, copper sulphate.

Answer: Sand is insoluble in water, while others are soluble in water.

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FAQs on NCERT Solution - Sorting of Materials into Groups - Class 6

1. What is the importance of sorting materials into groups?
Ans. Sorting materials into groups is important because it helps in organizing and categorizing objects based on their common properties. This enables us to understand and study the characteristics and behavior of different materials more effectively. It also helps in easy identification, retrieval, and use of materials in various fields such as science, engineering, and everyday life.
2. How can we sort materials into groups?
Ans. Materials can be sorted into groups based on various properties such as color, shape, size, texture, and material composition. For example, objects can be sorted into groups of similar colors or sizes. Similarly, materials can also be sorted into groups based on whether they are conductors or insulators of electricity, or whether they are magnetic or non-magnetic.
3. What are the benefits of sorting materials into groups?
Ans. Sorting materials into groups offers several benefits. It helps in easy identification and classification of materials, making it convenient for us to study and understand their properties. It also assists in organizing materials, making it easier to retrieve and use them when needed. Sorting materials into groups also aids in effective communication and sharing of information about different materials.
4. Can materials belong to more than one group?
Ans. Yes, materials can belong to more than one group. This is because materials can have multiple properties that can be used for sorting. For example, a red ball can belong to both the group of red objects and the group of round objects. Similarly, a metal object can belong to the group of metals as well as the group of conductors of electricity.
5. How does sorting materials into groups help in our daily life?
Ans. Sorting materials into groups helps in our daily life in various ways. It assists in organizing our belongings, making it easier to find and use them. For example, sorting clothes into groups based on their colors or types can help in selecting appropriate outfits quickly. Sorting food items into groups based on their expiry dates helps in avoiding wastage. Sorting books or documents into groups based on their subjects or categories helps in finding relevant information easily.
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