MyClass24 logo
myclass24
YOUR CLASS. YOUR PACE.
Q&A Bank

Questions & Answers

521 answers across all subjects

Subject:MathematicsScienceEnglishSocial StudiesHindiPhysicsChemistryBiologyComputer Science
Class:123456789101112
ScienceClass 6CBSE

What are lustrous materials? Give examples.

Lustrous materials are those that have a shiny or glossy surface. This property is usually seen in metals. When light falls on these materials, they reflect it, giving them a bright appearance. Examples of lustrous materials include silver and copper. Because of their shine, such materials are often used in making jewellery and decorative items.

ScienceClass 6CBSE

Name two metals which are used in our daily life.

Two commonly used metals in daily life are aluminium and iron. Aluminium is lightweight and resistant to corrosion, so it is used in making utensils, foil, and aircraft parts. Iron is strong and durable, making it useful in construction, tools, and machinery.

ScienceClass 6CBSE

What do you understand by the classification of materials?

Classification of materials means grouping different materials based on their similar properties. Since there are a large number of materials around us, it becomes difficult to study each one individually. By classifying them, we can understand their properties more easily and use them effectively. For example, materials can be grouped based on their appearance, hardness, solubility, or whether they conduct electricity.

ScienceClass 6CBSE

Write two objects which are made of the same material.

Chair and table are two common objects made from the same material, usually wood. Wood is strong, durable, and easy to shape, making it suitable for furniture. Many household items like doors, cupboards, and desks are also made from wood.

ScienceClass 6CBSE

Name two naturally occurring materials.

Naturally occurring materials are those materials that are obtained directly from nature without any human-made processing. Two common examples are wood and cotton. Wood is obtained from trees and is widely used for making furniture, houses, and tools. Cotton is obtained from cotton plants and is used for making clothes and textiles. These materials are essential in our daily lives.

ScienceClass 6CBSE

Describe the two main processes of making fabric from yarn.

Two main processes of making fabric from yarn are weaving and knitting. Weaving – Weaving is the process of arranging two sets of yarns together to make a fabric. Knitting – In knitting a single yarn which is used to make a piece of

ScienceClass 6CBSE

A cotton shirt, before it reaches you, completes a long journey. Elaborate this journey starting from cotton bolls.

Solution: The journey of a cotton shirt starting from cotton bolls is as follows: Picking: The seeds covered with cotton fibres are handpicked from the cotton Ginning: Seeds are separated from fibres by combing is called Now a day’s ginning is done with the help of machines. Spinning: Here, fibres are drawn out from cotton wool and This brings the fibres together to make a strong yarn. With the help of hand operated devices spinning is done. Weaving and knitting: The two methods of converting cotton yarn into cotton fabric is by weaving and A cotton shirt is usually made by weaving so in weaving, two sets of yarns are arranged together to make a fabric. Stitching: The cotton fabric is then stitched into cotton

ScienceClass 6CBSE

Match the terms given in column I with the statements given in column II. Column I Column II (a) Weaving (i) A single yarn used to make a fabric (b) Knitting (ii) Combing of cotton fibres to remove seeds (c) Spinning (iii) Yarns are made from these thin strands (d) Ginning (iv) These are spun from fibres and then used to make fabrics (e) Fibre (v) Process of arranging two sets of yarns together to make a fabric (f) Yarn (vi) Process of making yarn from fibres

Solution: The correct match is Column I Column II (a) Weaving (v) Process of arranging two sets of yarns together to make a fabric (b) Knitting (i) A single yarn used to make a fabric (c) Spinning (vi) Process of making yarn from fibres (d) Ginning (ii) Combing of cotton fibres to remove seeds (e) Fibre (iii) Yarns are made from these thin (f) Yarn (iv) These are spun from fibres and then used to make fabrics

ScienceClass 6CBSE

Fill in the blanks to complete the life story of cotton fibre. My parents, cotton plants were grown in soil and climate. The plants bore fruits called . I, the cotton fibre was separated from seeds in the cotton bolls by the process of . Other cotton fibres and myself were made into yarn by the process of . The yarn was to give beautiful colours and then to get cotton fabric

Solution: black warm cotton bolls ginning spinning dyed woven

ScienceClass 6CBSE

Match the articles given in column I with the articles of column II. Column I Column II (a) Sweater (i) Cotton (b) Cotton bolls (ii) Wool (c) Dhoti (iii) Ginning (d) Gunny bags (iv) Jute

Solution: The correct match is Column I Column II (a) Sweater (ii) Wool (b) Cotton bolls (iii) Ginning (c) Dhoti (i) Cotton (d) Gunny bags (iv) Jute

ScienceClass 6CBSE

In ancient times stitching was not known. People used to simply drape the fabrics around different parts of their body. Even today a number of unstitched fabrics are used by both men and women. Can you give four such examples of clothes?

Solution: Saree, dupatta, dhoti, lungi, turban, etc. are unstitched fabrics used by both men and women.

ScienceClass 6CBSE

Boojho with perfect eyesight was finding it difficult to pass a thread through the eye of a needle. What can be the possible reason for this?

May be due to the fault in the thread, the end of the thread was separated into a few thin strands or the thread was quite thick. Hence Boojho found it difficult to pass a thread through the eye of a needle.

ScienceClass 6CBSE

One way of making fabric from yarn is weaving, what is the other?

Another way of making fabric from yarn is Knitting.

ScienceClass 6CBSE

Once, Paheli visited a tailor shop and brought home some cuttings of fabric to study their properties. She took two pieces and found that one of the pieces were shrinking when it was burnt with a candle. However the other did not shrink on burning. Can you help her to find out which of the two was a cotton fabric and which a silk fabric?

Solution: On burning, silk fabric shrinks due to the presence of protein whereas cotton fabric does not shrink.

ScienceClass 6CBSE

The following is an answer given by Boojho to a question asked by his teacher- “Cotton, wool, silk and jute are classified as natural fibres whereas nylon and polyester are classified as synthetic fibres”. Can you tell what question the teacher has asked?

Solution: Teacher must have asked the students to classify the following fibres into natural and synthetic fibres. Jute, Silk, Nylon, Cotton, Wool, Polyester.

ScienceClass 6CBSE

Some terms related to fabrics are jumbled up and given below. Write them in their correct form. (a) onttoc (b) sinnping (c) vingwea bisref

Solution: Cotton Spinning Weaving Fibres

ScienceClass 6CBSE

Yarn, fabric and fibres are related to each other. Show the relationship by filling the blanks in the following sentence. Fabric of cotton saree is made by weaving cotton which in turn is made by spinning thin cotton . Solution:

yarn, fibres

ScienceClass 6CBSE

Boojho wants to make yarn from fibre at home. Which of the following will he use to carry out the task? (a) Powerloom (b) Handloom (c) Charkha Knitting needles

Solution: (c): Charkha Spinning is the method of making yarn from fibres. Charkha is a simple hand operated device used for spinning.

ScienceClass 6CBSE

The correct sequence to get cloth is (a) fibre → fabric → yarn (b) fibre → yarn → fabric (c) fabric → yarn → fibre (d) yarn → fibre → fabric.

Solution: (b): fibre → yarn → fabric Three processes such as spinning and weaving or knitting are involved to convert fibre into fabric. Spinning is the method of making yarn from fibres. Weaving and knitting are the two methods to convert yarn into fabric. Weaving is the process of arranging two sets of yarn together to make a fabric. Whereas in knitting, a single yarn is used to make a fabric.

ScienceClass 6CBSE

Beera is a farmer. His field has black soil and the climate is warm. Which fibre yielding plant should he grow in his field? (a) Jute (b) Cotton (c) Coconut (d) Wool

Cotton Places having black soil and warm climatic condition is good to yield cotton plants.

12345678910