Notify me of follow-up comments by email. NCERT Solutions for Class 7 Science chapter 3 Fiber to Fabric are prepared by the subject professionals to help students in their studies. (i) a Soon the caterpillar completely covers itself by silk fibres. Answer: This solution contains questions, answers, images, explanations of the complete chapter 3 titled Fibre to Fabric of Science taught in class 7. Class 7 Science Chapter 3 MCQ (Multiple Choice Questions) of Fibre to Fabric. Answer: Question 4. Out of the following, which are the two terms related to silk production? What is selective breeding? iii) Sericulture: The breeding and management of silkworms for the production of silk is known as sericulture. A pile of cocoons is used for obtaining silk fibres. (ii) Camel Question 6. This covering is known as Cocoon. You must be familiar with the following nursery rhymes: ‘Baa baa black sheep, have you any wool.’ ‘Mary had a little lamb, whose fleece was white as snow.’ Answer the following: (a) Which parts of the black sheep have wool? Also after the chapter you can get links to Class 7 Science Notes, NCERT Solutions, Important Question, Practice Papers etc. Answer: The longer fibres are made into wool for sweaters and the shorter fibres are spun and woven into woollen cloth. Answer: Find detailed video answer solutions to NCERT Solutions Science , Class 7 Fibre to Fabric questions taught by expert teachers. The small fluffy fibres, called burrs, are picked out from the hair. Question 9. Question 12. There are two types of fibres from sheep fleece. Activity 3.1 asks us to feel and compare the hairs present on our head and skin. with different textures are obtained from different varieties of silk moths. The hair provide woollen fibres. Finally, it comes out of the cocoon as silk- moth. Stay connected to our site to avail latest updates on Extra Questions for Various Classes instantly. The rearing of silkworms for obtaining silk is called Answer: Wool is acquired from the fleece or hair of these animals. It begins with few sources of wool and the concept of selective breeding. In which season sheep are sheared? This covering is known as cocoon. Sorting is the process of separating the different textures of hair. NCERTworld - NCERT Solutions Class 7 Science Chapter 3 Fibre to Fabric - NCERT Solutions and Download NCERT books free from class 6 to 12 NCERT textbook solutions Explain the processing of silk. Such a solution-based approach will help the students to build a … Students of Class 7 can download these solutions at any time as per their convenience for self-study purpose. Sericulture, Scientific name of mulberry is Morns alba. Fibre to Fabric Class 7 Extra Questions and Answers Science Chapter 3 PDF are solved by experts and will guide students in the right direction. Usually, hair are removed during the hot weather. Match the words of Column I with those given in Column II: Question 9. Download NCERT Solution for Class 7 Science Chapter 3 Fibre to Fabric. If you have any query regarding NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric, drop a comment below and we will get back to you at the earliest. What are burrs? Question 4. Question 1. (i) Yak Answer: 3 : Hatches from egg of moth, Question 1. What is meant by selective breeding? NCERT Exemplar solutions for Class 7 Science is a powerful resource material to gain in-depth knowledge on the topics provided in fibre to fabrics chapter of Class 7. The rearing of silkworms for obtaining silk is called as sericulture. Question 3. 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Which of the following does not yield wool? The fine and soft under-hair that grows close to the skin of the sheep have wool. What are the sources of wool? How is rearing of silkworm done? 2 : Animal fibre Reeling is done with special machines, which unwind the threads or fibres of silk from the cocoon. NCERT Book Class 7 Science Chapter 3 Fibre to Fabric NCERT Solutions For Class 7 Science Chapter 3 PDF Download. Users can download and print the worksheets on class 7 Science Fibre to Fabric for free. Question 10. Answer: Q2: State whether true (T) or false (F): Wool and silk are the animal fibers. Answer: (a) a caterpillar. What is meant by scouring? How is woollen cloth made after scouring hair of sheep? NCERT Science Class 7 Chapter 3 Class 7 Fibre to Fabric Activity Answers. Answer: Question 2. Which animal provides Pashmina shawls? Sources of Wool ... Shearing, scouring, Sorting, fiber spinning, fiber dying, rolling into Silk yarn Q6: Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk. (i) a (ii) b (iii) both a and b … What is cocoon? The process of taking out threads from the cocoon for use as silk is called reeling the silk. Describe the life history of silk moth. The fibres are scoured again and dried. We hope the NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric help you. The chapter is divided into two sections. Science - Class 7 / Grade 7 (Chapter 01-10) Chapter 3 - Fibre to Fabric - 1 NCERT Solutions for Class 7 Science PDF free download, NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric, to Study online or download free in PDF form. The female silk moth lays eggs, from which hatch larvae which are called caterpillars or silkworms. Apart from grazing, reares also feed them on a mixture of pulses, com, Jowar, oil cakes, etc., In winter Sheep are kept indoors and fed on leaves grain and dry footder. Reeling is done in special machines, which unwind the threads or fibres of silk from the cocoon. i) Rearing: Rearing is raising and taking care of livestock (eg. Answer: Hope the knowledge provided regarding the Fibre to Fabric Class 7 Extra Questions and Answers has helped you to the possible extent. Define Sericulture. Which of the following does not yield wool? NCERT Exemplar Class 7 Science Solutions Chapter 3 Fibre to Fabric. How is reeling of silk done? The worms are then kept in clean bamboo trays along with freshly chopped mulberry leaves. Anthrax. (i) Yak (ii) Camel (iii) Goat … The silkworm is They grow in size and when the caterpillar is ready to enter the next stage of its life history called pupa, it first weaves a net to hold itself. The process of taking out threads from the cocoon for use as silk is called reeling the silk. Answer: The eggs are stored carefully on strips of cloth or paper and sold to silkworm farmers. Draw a neat diagram of the life-history of silk moth. Answer: Question 10. The silkworm is. The silk fibres are separate out. Several breeds of sheep are found in different parts of our country. NCERT Solutions for Class 7 Science Chapter 3 Fibre to Fabric in Hindi Medium and English Medium free to download PDF 2020-2021. Small racks or twigs may be provided in the trays to which cocoons get attached. Ans:- Yak wool is common in the hilly regions of Tibet and Ladakh. Activity 3.1. Answer: Answer: Question 8. Answer: Shearing, scouring, sorting, picking of burrs, dying of fibres, making of yarn. One thread burnt with a smell of burning hair and the other burnt with the smell of burning paper. Chapter 3 Fibre To Fabric. (a) Which parts of the black sheep have wool? NCERT Solutions Class 7 Science Chapter 3 Fibre to Fabric – Here are all the NCERT solutions for Class 7 Science Chapter 3. After scouring, sorting is done. The process of selecting parents for obtaining special characters in their offspring such as soft under hair in sheep is termed as The experts at Vedantu have released the Fibre to Fabric Class 7 PDF, which the students can download and study. A female silk moth lays hundreds of eggs at a time. Question 1. What are silkworms? Summer. Sheep, goat, yak. The silk yarn (thread) is obtained from the cocoon of the silk moth. The Cocoons are kept under the sun or boiled or exposed to steam. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Answer: Answer: Silk fibres are then spun into silk threads, which are woven into silk cloth by weavers. Question 3. Answer: It will help you gain all-important basic knowledge required to study advanced topics on fibres and fabrics. Chapter 3: Fibre to Fabric. Define Shearing. The silkworm is (a) a caterpillar, (b) a larva. Question 9. 2 : Its leaves are eaten by silkworms They grow in size and when the caterpillar is ready and enter pupa stage. Question 1. For more info feel free to reach us and we will guide you at the earliest possibility. Solutions of every question of Class 7 Science topic – Fibre to Fabric is available in a very detailed manner. A pile of cocoons is used for obtaining silk fibres. The sheared skin with hair is thoroughly washed in tanks to remove grease, dust and dirt is called scouring. Given below is a sequence of steps in the processing of wool. Name one disease that occurs in sheep. Given below is a crossword puzzle based on this lesson. Question 6. Answer: It is a fatal blood disease. For pupa stage, the caterpillar completely covers itself by silk fibres. Explain the life-history of silk moth. Name some Indian breeds of sheep. Answer: Answer: Question 4. Question 4. Write about the food of sheep. Yak wool from Tibet and Ladakh Mohair is obtained from angora goats, wool from goat hair, The underfur of Kashmiri goats are soft and it is woven into fine shawls called Pashmina shawls. KSEEB Solutions for Class 7 Science Chapter 3 Fibre to Fabric October 16, 2020 September 1, 2020 by Prasanna Students can Download Chapter 3 Fibre to Fabric Questions and Answers, Notes Pdf, KSEEB Solutions for Class 7 Science , Karnataka State Board Solutions help you to revise complete Syllabus and score more marks in your examinations. Name three animals that yield wool. Which are the missing steps? (iii) Goat (a) a caterpillar, The silkworm is (a) a caterpillar, (b) a larva. Answer: The fibres can be dyed in various colours, as the natural fleece of sheep and goats is black, brown or white. Question 11. Question 13. Answer: Draw figures to describe life history of silk moth. It is done by the machines which remove the hair. The hairy skin is sent to a factory where hair of different textures are separated or sorted. In winter, sheep are kept indoors and fed on leaves, grain and dry fodder. The female silk moth lays eggs from which hatch larvae which are called Caterpillars or silkworms. Grass, leaves, mixture of pulses, corn, jowar, oil cakes and minerals. Download NCERT Solutions Class 7 Science Fibre to Fabric free pdf, NCERT Solutions updated as per latest NCERT book, NCERT Solutions for Class 7 Science for chapter 3 Fibre to FabricQuestion.1You must be familiar with the following nursery rhymes:(i) ‘Baa baa black sheep, have you any wool.’ (ii) ‘Mary had a little lamb, whose fleece was white as snow.’ Class 7 Chapter 3 Activity. Reeling is done in special machines, which unwind the threads or fibres of silk from the cocoon. She took out a thread from the edge of the two sarees shown by the shopkeeper and burnt them. The wool is obtained mainly from animals like sheep, yak and goat. Answer: These NCERT Solutions for Class 7 Science Fibre to Fabric in Hindi medium pdf download have innumerable benefits as these are created in simple and easy-to-understand language. This is the wool ready to be drawn into fibres. What is the most common silk moth? The cocoons are kept under the sun or boiled or exposed to steam. Save my name, email, and website in this browser for the next time I comment. Add them. NCERT solutions for Class 7 Science chapter 3 (Fibre to Fabric) include all questions with solution and detail explanation. (ii) b Answer: Question 2. The caterpillar or silkworm spins the cocoon inside which develops the silk moth. This enables sheep to survive without their protective coat of hair. Apart from grazing sheep, rearers also feed them on a mixture of pulses, corn, jowar, oil cakes (material left after taking out oil from seeds) and minerals. Question 8. Question 2. Here we have given NCERT Exemplar Class 7 Science Solutions Chapter 3 Fibre to Fabric. Question 3. Sericulture, floriculture, moriculture, apiculture and silviculture. Question 1. There are about 20 sets of MCQ tests, each test containing 5 questions with answers and explanation of answers updated for new academy session 2020-21. Woollen fibres are then processed to obtain woollen yarn. The farmers keep eggs under hygienic conditions and under suitable conditions of temperature and humidity. Kashmiri goat. CBSE worksheets for Fibre to Fabric worksheet for class 7 in PDF for free download. Shearing does not hurt the sheep because uppermost layers of skin is dead. Observation: We feel body hairs are softer than hairs on our head. (i) a (ii) b (iii) both a and b … Answer: Paheli went to the market to buy sarees for her mother. (b) a larva. Question 7. Silkworm ➝ Cocoon with pupa. Moriculture. Sheep wool is very common. Fibre to Fabric Class 7 Extra Questions and Answers Science Chapter 3 PDF are solved by experts and will guide students in the right direction. (iv) Woolly dog. At the end of the Solutions, all the keywords and Notes which are important to understand NCERT Solutions for Class 7 Science Chapter 3- Fibre to Fabric, have been explained in a simple and easy to understand manner. This will clear students doubts about any question and improve application skills while preparing for board exams. Answer: (iv) Woolly dog NCERT Grade 7 Science, Chapter 3, Fibre to Fabric deals majorly with the fundamentals of two main animal fibres: wool and silk. Nutrition In Plants. Answer: NCERT Solutions . Question 3. How is silk processed? Choose the correct option. What is the diet of sheep? This covering is known as cocoon. Larvae of silk moth are called silkworms. The further development of the moth continues inside the cocoon. Question 5. Answer: selective breeding. During these movements of the head, the caterpillar secretes fibre made of a protein which hardens on exposure to air and becomes silk fibre. (iii) both a and b The larvae, called caterpillars or silkworms, eat day and night and increase enormously in size. Answer: Fibre to Fabric , CBSE Science Class 7 NCERT Solutions. Answer: They are. The rearing of silkworms for obtaining silk is called, The soft silk yarn (thread) is as strong as the thread of, Sericulture or Culture of silkworms is a very, Sometimes the sorters get infected by the bacterium, The risks faced by workers in any industry are called, The process of taking out threads from the cocoon is known as, The small fluffy fibres of wool are called. The further development of the pupa into moth continues inside the cocoon. ); for commercial purposes. The process of cutting off the woolen fleece of sheep with a thin layer of skin is called shearing. Scroll down for Fibre to Fabrics from NCERT Book Class 7 Science Book & important study material. (b) What is meant by the white fleece of the lamb? Mulberry silk moth. 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