For example, polyester, nylon, and acrylic, etc. (C) False : Jute is obtained from jute plant (Corchorus). The second stage began with the use of animal fibres especially wool and silk. SILK . For example, polyester, nylon, and acrylic, etc. Types of Fibre There are two types of fibres classified accord Synthetic fibres are used for making fabrics (or cloth). Neelima saw cocoons being boiled in water. Iranian cashmere, however, is obtained by shearing. Types of Fibres, Fibre to Fabric, Class 6. Rabbit hair, animal fibre obtained from the Angora rabbit and the various species of the common rabbit. Wool can also be obtained from the hair of rabbits and camels. What are you doing? By-products. Some examples of synthetic fibres are polyester, nylon and acrylic. Fabrics are defined as a cloth material made by knitting or weaving or of threads together. Biological Source . The fibre of the Angora rabbit (so named for the resemblance of its pelt to that of the Angora In India, cotton is grown in Gujarat, Maharashtra, Andhra Pradesh, Punjab, Haryana, Karnataka, Tamil Nadu, Rajasthan, Orissa and Madhya Pradesh. Question: Explain how jute is obtained from the jute plant. You also learnt that wool and silk fibres are obtained from animals. 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. Question 9. Usually in a very bright silver white, sometimes it may be ash-grey, rosy, brown or black. (g) Polyester is a natural fibre. (F) Silk fibre is obtained from the stem of a plant. a) Yarn is made from fibres. Find an answer to your question A. Wool - Obtained from fleece/ hair of some animals sheep/ goat/ rabbit/ yak/ camel - Soft to touch - Traps air in the spaces present, air is a poor conductor of heat and so keeps us warm - easily dyed in different colors. Then it is subjected to next process depending upon whether it is meant for worsted purpose or woolen products. Once these animal fibres are extracted they are generally knitted or woven for forming beautiful animal fabrics. Natural fibers – The fibers which are produce from natural sources called natural fibres (cotton and jute from plant, silk and wool from animal.) Animal fibres → Wool and silk fibres are obtained from animals. Made of proteins eg wool and silk. The silk fiber is the only fiber obtained from an insect (secretion) – … 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. → Wool is obtained from the fleece (hair) of fleece sheep or yak. Wool → Wool comes from sheep, goat, yak and some other animals who are having hair on their body. How is wool obtained from sheep?3. Do you know which part of the sheep’s body yields fibres? 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. Explain the life cycle… d) The process of removing seed from cotton is called ginning. This cotton wool is also used for filling mattresses, quilts or pillows. 3 Fibre to Fabric I n Class VI you have learnt about some fibres obtained from plants. Numerous scientific studies have confirmed their importance in maintaining health and preventing illness. NCERT Solution for Class 6 Science. Wool. Animal fibres: Fibres obtained from animal sources are called animal fibres. → Wool is derived from these hairy fibres. I work in the reeling centre. What do you use for making these wicks? Wool is obtained from the fleece (hair) of sheep or yak. 2. Fibres are also made from chemical substances, which are not obtained from plant or animal sources. e) Weaving of yarn makes a piece of fabric. You also learnt that wool and silk fibres are obtained from animals. Explain the process of making yarn from fibre. Learn about animal fibres with examples and FAQs here. 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. These are called synthetic fibres . Silk came to various parts of the world from China. Silk fibres come from cocoons of the silk moth. These fibres are obtained from different animal sources. Fibres obtained from the cocoons spun by the larvae Bombyx mori Linn., belonging to family Bombycidae/Moraceae. The fibres obtained from animals are generally textile. Silk fibres come from cocoons of the silk moth. Names of Animal Fibres. Answer. Natural Fibres can be categorised in two different types: Plant Fibres. LET US KNOW ABOUT SOME ANIMAL FIBRES: WOOL; Wool is obtained from the fleece (hairy growth) of sheep and other wool yielding animals like Yak, Camel, Kashmiri Goat, Llama, Alpaca, Vicuna, Guanaco, etc.These animals have a thick coat of hair on their bodies to trap a lot of air. SOLUTION: (A) True (B) False : Spinning is the process of making yarn from fibres. Differentiate between plant and animal fibres.2. Natural silk is an animal fibre. It is the secretion of an insect called the silk worm. These are called synthetic fibres. Most of this down fibre is plucked or combed out by hand during the molting season. The downy undercoat is made up of the fine, soft fibre commonly called cashmere, which ranges from 2.5 to 9 cm (1 to 3.5 inches) long. For example, polyester, nylon, and acrylic etc. 2. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. Answer in Detail1. Animal fibres are the natural fibres that can be sourced to animals. Animal Fibres c) Jute is the outer covering of coconut. Artificial silk is obtained from wood pulp and it is made up of modified plant material ‘cellulose’. Mohair fibre is obtained from the fleece of Angora goat, originally from Anatolia. Caterpillar of silkworm spins fiber which is mainly made up of two types of protein (sirisine and fibroin) and is very strong. Natural fibres further can be classified in two categories according to its source of generation. Can you name the fibre we get from sheep and goat? These fibres can not be produced by any type of chemical process. (a) Woollen shawl (b) Silk scarf (c) Animal fur cap (d) Leather jacket. From which parts of the plant cotton and jute are obtained? 3. She was shocked and uttered ‘Hey … ! We are boiling cocoons to get silk fibre. Wool is obtained from the fleece (hair) of sheep or yak. That’s right, we get wool from their hair. 3 Fibre to Fabric I n Class VI you have learnt about some fibres obtained from plants. Explain. Fibres. TYPE OF FIBRES. Used for animal feed as well as human nutrition, fibres form part of Tereos’ by-products. Because of the waviness of wool, the woollen fabrics have a greater bulk (than cotton fabrics) and hence trap more air. Fibre to Fabric NCERT – Question: Sorter’s disease is an occupational hazard. These are a type of natural fibres as they are obtained from nature. Fibres are the materials, which are available in the form of thin, continuous and flexible strands spun into yarn and made into fabrics. “Textile fibres directly obtained from nature are called natural fibres”. Alpaca to Yak . Answer: (a) Woollen shawl. Wool is the most commonly used animal fibre. Do you know which part of the sheep’s body yields fibres? Some examples of synthetic fibres are polyester, nylon and acrylic. Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Which of the following would be the right gift for her to buy? Wool is the soft, wavy (or curly) hair which covers the body of a sheep. Animals that yield wool → Breeds of sheep are found in different pa 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. Sheep are the principal source of natural animal fibre and there are more than 200 breeds of sheep worldwide. substances, which are not obtained from plant or animal sources. f) Silk fibre is obtained from the stem of a plant. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. Some of our clothes are made from yarn derived from animal fibres . Answer: The jute plant is normally harvested at flowering stage. Silk. Synthetic fibres- such fibres are Obtained from Synthetic chemical sources (nylon and rayon they are prepared from chemical process) 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. 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. Camel fibre. These are the only natural fibers, which have considerable low strength. The annual yield per animal ranges from a few grams to about 0.5 kilogram. 3.3 SOME PLANT FIBRES Cotton Have you ever made wicks for oil lamps? Due to this, woollen fabrics keep us more warm during cold, winter days. Rabbits have coats consisting of both long, protective guard hairs and a fine insulating undercoat. Silk fibres come from cocoons of the silk moth. Chapter 3 - Fibre to Fabric. Answer. A - Animal fibres: The natural fibres obtained from animals or insects are known as animal fibres. Some of the examples of synthetic fibres are nylon, polyester (like terylene) and polyacrylic (like Orion). g) Polyester is a natural fibre. 22 Animal Fibre Mahaboobnagar district. Summary Wool fibers are animal fibers, which are obtained from sheep. 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. The fibers extracted from these animals greatly differ in terms of biological, chemical and physical features. Wool, after shearing, it is graded and then scoured with alkaline solution. These fibres are usually made up of different kinds of proteins. Name two items that are made from coconut fibre. certain fibres are not made from natural sources. Obtained from various parts of the plant. Animal Fibres - Silk | Home | | Pharmacognosy | Chapter: Pharmacognosy and Phytochemistry : Fibres, Sutures and Surgical Dressings. These fibres are not obtained from plant or animal sources. The largest number of breeds in one country is in Britain, with around 65. b) Spinning is a process of making fibres. 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. These fibres are generally produced from the animal’s fur, skin, hair, or even secretion in the case of the silkworm. Fibres are long chains of carbohydrates that are neither digested nor absorbed in the human small intestine. Another animal fibre you all are familiar with is silk. These fabrics are then used for making our dresses and for other domestic purposes like curtains, etc. 1. Fibres obtained from the cocoons spun by the larvae Bombyx mori Linn., belonging to family Bombycidae/Moraceae. The fibres are of two types:1 Natural fibres 2 Synthetic fibres. (D) True (E) True (F) False : Silk fibre is obtained from silkworm (animal). What are Fibres and Fabrics? Sheep. Silkworms & silkmoths. Example: Wool and Silk. Read more about these on the sheep breeds page. The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. Animal fibres. Wool is a modified form of hair that grows with a waviness. Silk fibre is obtained from: (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk. All questions and answers from the Living Science 2019 2020 Book of Class 7 Science Chapter 4 are provided here for you for free. Animal Fibres from sheep, alpaca, camels, rabbits, goats & silk moths. 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