NCERT Solution for Class 6 Science. Answer: ... Cotton fibres are separated from seeds by combing and the process is called -¬ginning. It is cultivated in rainy season. Some machines combine breaking and scutching operations. fiber. These are called coconut fibres. Ans. Jute fibre is very strong. The fibre is extracted from the stem of the jute plant by the process of retting. Here is great educational video from England in the 1940's explaining the process of turning flax into a fiber. True False: f. Silk fiber is obtained from the stem of a plant. Jute is a strong plant fibre. clothes. The climatic conditions required for the cultivation of jute are temperature, rainfall and soil. Obtaining fibre, (ii) Preparation of yarn from fibres by spinning, (iii) When two sets of yarn are involved, yarns are woven on looms to make a fabric. The outer covering of coconut has also some fibres on it. explain the process of obtaining silk fibre from cocoon. In this process,fibers from a mass of cotton wool are drawn out and twisted. ( a ) ગુજરાત ( b )રાજકોટ ( c ) ઉત્તરપ્રદેશ, An object is placed in front of a concave mirror of focal length 20 cmat a distance of 10 cm. The natural colour of wool is generally creamy white though some breeds of sheep produce wool having brown and black colours. Process Of Making Fabric From Fibre. It is mainly grown in the rainy season. A process called retting is used to remove the non-fibrous material from the stem and skin of the jute stalk. Components of Food : CBSE NCERT Class VI Science ... Food - Where Does it come from? Jute fibre is obtained from the stem of the jute plant. SEGMENTO. (e) Weaving of yam makes a piece of fabric. Silk yarns come from the cocoon of the silkworm. The flow diagram of the fibre to fabric process is shown in Figure 1. e) Weaving of yarn makes a piece of fabric. (b) it is a standard unit of measurement(e) These fibres can then be separated from the non-fibrous matter by hand. The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. Ans. The two common methods used for producing Fabrics are: Knitting. Ans : a) Yarn is made from fibre. Physical Features Of India | Geography | CBSE Class 9th Question 1. Lesson 2 : How the Dog Found Himself A Master ? Jute fibre is used for making ropes and jute bags. This site is using cookies under cookie policy. Sem categoria This process saponifies the natural waxes on the fiber and the rest of the plant is softened. In this process, fibres from a mass of cotton wool are drawn out and twisted. Give an example from the sources of animals fibres? Share yourCollect and label 8 different types ofexperience of collecting the rootsfing words, સામાન્ય રીતે ક્યા રાજય્ન લોકોનો મુખ્ય્ ખોરાક દાળ ,ભાત , રોટલી અને શાક છે. Polymers 2 are the resource for man-made fibres, which are derived mostly from oil. Retting softens the stalks and makes it possible to separate the fibrous material from the unusable material by hand. Ans :The process of making yarn from fibres is called spinning. (True) b) Spinning is a process of making fibres. Q.2: State whether the following statements are true or false: a) Yarn is made from fibres. f) Silk fibre is obtained from the stem of a plant. Answer: The jute plant is normally harvested at flowering stage. Then they are hung up or spread on thatched roofs to dry. Jute mainly grows in regions having alluvial soil which is found in the delta regions of the Ganges and Brahmaputra rivers. Jute fibre is produced abundantly in Bangladesh and hence, very cheap. Wool fibres come from sheep, camel, goat, and yak. Heat Chapter 5. During this period, the stem of the plant rots and the fibres (present in the stem) remain. It is also called Golden fibre. There are two types of retting: stem and ribbon. Machine unwinds the silk thread from cocoons. When the jute plant is at its flowering stage, it is harvested. As these separate, the pectins and other non-cellulosic materials are suspended and washed away. So we call them synthetic. Motion | Lesson Exercises, CBSE Class 7th (VII) English Chapter 2. CBSE Class 6th, 7th, 8th, 9th, & 10th | Help Guide | Solved Exercises | MCQs | Questions & Answers | Sample Papers. Explain how fibres are obtained from the jute plants. (True) e) Weaving of yarn makes a piece of fabric. Nutrition in Animals Chapter 3. Explain how jute is obtained from the jute plant. Therefore, to obtain silk, the Koya is put into the boiling water, so that the silkworm which is inside it, ... - Silk thread is a protein fiber while cotton and jute yarn is cellulose. (vii) Acrylic (viii) Jute 3. Weaving: Weaving involves making fabric by arranging two sets of yarn. Answer. Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans? In this process, fibres from a mass of cotton are drawn out and twisted. During this period, the stem of the plant rots and the fibres (present in the stem) remain.The process by which fibres are obtained from the stem of the plant is known as retting.These fibres can then be separated from the non-fibrous matter by hand. Class 6 Chemistry Fibre to Fabric: Jute: Jute. Ques 5: Name two items that are made from coconut fibre. • Scouring -the removal of all impurities from grease wool, using water, detergent, and sometimes a mild alkali. Add your answer and earn points. Fibre to Fabric NCERT – Question: Cocoon is used to obtain silk thread. Questions with in the Chapter Page 100 ( CBSE Class IX ( 9th) Science Textbook - Chapter 8. Powered by, CBSE MASTER | NCERT Textbooks Exercises Solutions, NCERT Class VI (6th) Social Science -Geography, NCERT Class VI History - Social Studies (Our Pasts-I), NCERT Class VI Social Science - Social and Political Life-1, CBSE Class VIII (8th) Science | All Chapters Solved Exercises, CBSE Class VI ( 6th) Mathematics Chapter 1 : Knowing our Numbers -Try These (Extra Solved Questions and Examples with in Chapter), CBSE Class IX ( 9th) Science | Chapter 8. State whether the following statements are true or false: a) The yarn is made from fibres. The jute bags are used as shopping bags that as well as for storing food grains. The type of fibre determines the extraction process to be used. Cotton, wool, silk and jute are some natural fibres, while nylon and polyester are some examples of synthetic fibres. Microbes are used in retting to obtain bast fibres. When the jute plant is in the flowering stage, it is harvested. After harvesting, it is kept submerged in water for a few days. Jute. d) The process of removing seed from cotton is called ginning. To extract the fibres from the stem, the process is carried out in the following stages : Retting Retting is a process in which the tied bundles of jute stalks are taken to the tank by which fibres get loosened and separated from the woody stalk. The coconut fibres are used for making ropes and mats.The common name of coconut fibre is coir. Physical Features Of India | Geography | Class 9th CBSE, CBSE Class 10th Science | Chapter 6. For this, it is need to be exposed to warmth. Jute is sometimes also called as the golden fibre. Jute is obtained from the stem of jute plant. Nowadays, fibre is obtained from the fibre plant. Obtaining fibre. (d) The process of removing seeds from cotton is called ginning. It is used in the production of fibre from plant materials such as flax and hemp stalks and coir from coconut husks. Processing techniques and color applications also influence the value of cotton fiber identifications. The process by which fibres are obtained from the stem of the plant is known as retting . The fabric is stitched to make clothes. f) Silk fibre is obtained from the stem of a plant. True False: g. Polyester is a natural fiber. Weaving: Weaving involves making fabric by arranging two sets of yarn. Try these : (Class VI ( 6th) Mathematics Chapter 1. Spinning is done at home using simple devices like hand spindle (Takli) and charkha. While discussing fibre extraction methods, it is essential to mention the decortication process – the extraction of green fibre … At flowering stage only, jute plants are cut and a good quality fibre is obtained at this stage. Jute mainly grows in regions having alluvial soil which is found in the Delta of... Used as shopping bags, shopping bags that as well as for storing grains... 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