Fabrics are defined as a cloth material made by knitting or weaving or of threads together. Some of the examples of synthetic fibres are nylon, polyester (like terylene) and polyacrylic (like Orion). “Textile fibres directly obtained from nature are called natural fibres”. Synthetic fibres are used for making fabrics (or cloth). Animal fibres: Fibres obtained from animal sources are called animal fibres. The fleece of this animal is made of wool fibres: the most precious hair is long, between 12 and 25 centimetres, slightly curly and bright like silk. Wool is obtained from the fleece (hair) of sheep or yak. All questions and answers from the NCERT Book of Class 7 Science Chapter 3 are provided here for you for free. → Wool is derived from these hairy fibres. 22 Animal Fibre Mahaboobnagar district. The fibers extracted from these animals greatly differ in terms of biological, chemical and physical features. Can you name the fibre we get from sheep and goat? Summary Wool fibers are animal fibers, which are obtained from sheep. substances, which are not obtained from plant or animal sources. Chapter 3 - Fibre to Fabric. For example, polyester, nylon, and acrylic, etc. Silk. From which parts of the plant cotton and jute are obtained? Mohair fibre is obtained from the fleece of Angora goat, originally from Anatolia. Most of this down fibre is plucked or combed out by hand during the molting season. Natural Fibres can be categorised in two different types: Plant Fibres. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. Read more about these on the sheep breeds page. TYPE OF FIBRES. Fibres are also made from chemical substances, which are not obtained from plant or animal sources. These solutions for Animal Fibres Wool And Silk are extremely popular among Class 7 students for Science Animal Fibres Wool And Silk Solutions come handy for quickly completing your homework and preparing for exams. Name two items that are made from coconut fibre. Wool → Wool comes from sheep, goat, yak and some other animals who are having hair on their body. If we perform the burning test, then natural silk fibre burns giving a smell of burning hair while artificial fibre burns giving a smell of burning paper. CBSE Worksheets for Class 6 Science Fibre to Fabric Assignment 3; CBSE Worksheets for Class 6 Science Fibre to Fabric Assignment 4; D. Answer the following questions in short: 1. These are the only natural fibers, which have considerable low strength. In India, cotton is grown in Gujarat, Maharashtra, Andhra Pradesh, Punjab, Haryana, Karnataka, Tamil Nadu, Rajasthan, Orissa and Madhya Pradesh. Animal Fibres a) Yarn is made from fibres. e) Weaving of yarn makes a piece of fabric. Numerous scientific studies have confirmed their importance in maintaining health and preventing illness. This cotton wool is also used for filling mattresses, quilts or pillows. 3.3 SOME PLANT FIBRES Cotton Have you ever made wicks for oil lamps? A - Animal fibres: The natural fibres obtained from animals or insects are known as animal fibres. These fibres are obtained from different animal sources. The silk fiber is the only fiber obtained from an insect (secretion) – … Silk fibres come from cocoons of the silk moth. The second stage began with the use of animal fibres especially wool and silk. These fibres are not obtained from plant or animal sources. (C) False : Jute is obtained from jute plant (Corchorus). These MCQ Questions on Fibre to Fabric Class 7 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. 2. How is wool obtained from sheep?3. Do you know which part of the sheep’s body yields fibres? Wool can also be obtained from the hair of rabbits and camels. These fabrics are then used for making our dresses and for other domestic purposes like curtains, etc. Some examples of synthetic fibres are polyester, nylon and acrylic. b) Spinning is a process of making fibres. 2. Fibres. Camel fibre. Wool, after shearing, it is graded and then scoured with alkaline solution. I work in the reeling centre. Animal Fibres from sheep, alpaca, camels, rabbits, goats & silk moths. That’s right, we get wool from their hair. Cotton Fibres: Cotton fibre is obtained from cotton plants that grow in black soil in a warm climate. These fibres are usually made up of different kinds of proteins. certain fibres are not made from natural sources. The third stage in the history of clothing began in the late 19th century with the development of man-made or synthetic fibres like rayon, nylon and polyester. Wool is the soft, wavy (or curly) hair which covers the body of a sheep. Animal Fibres - Silk | Home | | Pharmacognosy | Chapter: Pharmacognosy and Phytochemistry : Fibres, Sutures and Surgical Dressings. Explain the life cycle… 3 Fibre to Fabric I n Class VI you have learnt about some fibres obtained from plants. (a) Woollen shawl (b) Silk scarf (c) Animal fur cap (d) Leather jacket. Artificial silk is obtained from wood pulp and it is made up of modified plant material ‘cellulose’. Example: Wool and Silk. The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. Silk came to various parts of the world from China. Which of the following would be the right gift for her to buy? Wool is a modified form of hair that grows with a waviness. SOLUTION: (A) True (B) False : Spinning is the process of making yarn from fibres. Natural silk is an animal fibre. The annual yield per animal ranges from a few grams to about 0.5 kilogram. What are Fibres and Fabrics? Some examples of synthetic fibres are polyester, nylon and acrylic. Answer in Detail1. Silkworms & silkmoths. Natural fibers – The fibers which are produce from natural sources called natural fibres (cotton and jute from plant, silk and wool from animal.) Types of Fibre There are two types of fibres classified accord Alpaca to Yak . The fibres which are obtained from natural sources like plants and animals are called natural fibres.The fibres which are prepared from chemical substances in industry are called synthetic fibres. These are called synthetic fibres. Types of Fibres, Fibre to Fabric, Class 6. → Wool is obtained from the fleece (hair) of fleece sheep or yak. Answer. Silk fibres come from cocoons of the silk moth. Silk fibres come from cocoons of the silk moth. Due to this, woollen fabrics keep us more warm during cold, winter days. What are you doing? 3. The fibres are of two types:1 Natural fibres 2 Synthetic fibres. Fibre to Fabric NCERT – Question: Sorter’s disease is an occupational hazard. Wool is obtained from the fleece (hair) of sheep or yak. Sheep are the principal source of natural animal fibre and there are more than 200 breeds of sheep worldwide. Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. f) Silk fibre is obtained from the stem of a plant. Animal fibres are the natural fibres that can be sourced to animals. Question 9. These fibres are generally produced from the animal’s fur, skin, hair, or even secretion in the case of the silkworm. These solutions for Animal Fibres are extremely popular among Class 7 students for Science Animal Fibres Solutions come handy for quickly completing your homework and preparing for exams. For example, polyester, nylon, and acrylic etc. (D) True (E) True (F) False : Silk fibre is obtained from silkworm (animal). You also learnt that wool and silk fibres are obtained from animals. Used for animal feed as well as human nutrition, fibres form part of Tereos’ by-products. Solving the Fibre to Fabric Multiple Choice Questions of Class 7 Science Chapter 3 MCQ can be of extreme help as you will be aware of all the concepts. These are a type of natural fibres as they are obtained from nature. Wool is the most commonly used animal fibre. You also learnt that wool and silk fibres are obtained from animals. Once these animal fibres are extracted they are generally knitted or woven for forming beautiful animal fabrics. Explain. NCERT Solution for Class 6 Science. c) Jute is the outer covering of coconut. Fibres are the materials, which are available in the form of thin, continuous and flexible strands spun into yarn and made into fabrics. g) Polyester is a natural fibre. Fibres obtained from the cocoons spun by the larvae Bombyx mori Linn., belonging to family Bombycidae/Moraceae. The largest number of breeds in one country is in Britain, with around 65. Animal fibres → Wool and silk fibres are obtained from animals. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. Rabbit hair, animal fibre obtained from the Angora rabbit and the various species of the common rabbit. Synthetic fibres- such fibres are Obtained from Synthetic chemical sources (nylon and rayon they are prepared from chemical process) We are boiling cocoons to get silk fibre. Then it is subjected to next process depending upon whether it is meant for worsted purpose or woolen products. Question: Explain how jute is obtained from the jute plant. Do you know which part of the sheep’s body yields fibres? Sheep. Rabbits have coats consisting of both long, protective guard hairs and a fine insulating undercoat. Wool. Answer: (a) Woollen shawl. Biological Source . d) The process of removing seed from cotton is called ginning. 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