What will happen if there are no platelets in the blood? What Policies Can Help Students Affected by COVID-19? Yak wool is common in Tibet and Ladakh. 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. The sheep have fine and soft wool under the hair that grows close to the skin. The fine hair provides the fibres for making wool. How is reeling of silk done? The eggs are warmed to a suitable temperature for the larvae to hatch from eggs. Nowadays scouring is done by machines. Such risks faced by workers in any industry are called occupational hazards. Question 1. In winter, sheep are kept indoors and fed on leaves, grain and dry fodder. According to an old Chinese legend, the empress Si-lung-Chi was asked by the emperor Huang-ti to find the cause of the damaged leaves of mulberry trees growing in their garden. 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. Wool is also obtained from goat hair. 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. It provides answers to the questions given in the textbook. Name one disease that occurs in sheep. Grass, leaves, mixture of pulses, corn, jowar, oil cakes and minerals. This is the wool ready to be drawn into fibres. Solutions are based on latest CBSE Text Books for the academic session 2020-2021. The caterpillar or silkworm spins the cocoon inside which develops the silk moth. Chapters in NCERT Class 7 Social Science textbooks deal with History, Civics, and Geography. NCERT Solutions for Class 7 Science – Get all NCERT solution for class 7 science chapter wise from this page. Answer: 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. For easy access, we at BYJU’S provide free Class 7 Science NCERT Solutions for all chapters in PDF format. All the solutions are update for new academic session 2020-21. The route they travelled is still called the SILK ROUTE. You have learnt about some fibres obtained from animals. What is the diet of sheep? Free Chapter wise NCERT Solutions for Class 7 by Extramarks allow students to understand a tough topic with an easier explanation. Silk industry began in China and was kept a closely guarded secret for hundreds of years. Answer: The various steps for processing fibres into wool are as follows: Shearing: The first step is to remove fleece of the sheep along with thin layer of skin. Students can get how to tackle different questions easily by solving the Extra Questions for Class 7 Science Question bank on a … Soil. CBSE Class 7th Science solutions provide ample material to enable students to form a good base with the fundamentals of the NCERT Class 7 Science textbook. Fabric needs more energy to tear apart as compared to a single fibre. NCERT Solutions for Class 9 Science Chapter 3- Atoms and Molecules is a detailed study material prepared by experts. Students can get how to tackle different questions easily by solving the Extra Questions for Class 7 Science Question … We have Provided Fibre to Fabric Class 7 Science MCQs Questions with Answers to help students understand the concept very well. Woollen fibres are then processed to obtain woollen yarn. NCERT Solutions for Class 7 Science for academic year 2020-21 are given here in a chapter-wise format, according to the latest CBSE guidelines. Sorting: In this step, different textures of hair are separated or shorted. The process of taking out threads from the cocoon for use as silk is called reeling the silk. Classify the following as motion along a straight line, circular or oscillatory motion: (i) Motion of … The NCERT Class 7 solutions can help them ace the class 7 exams with extraordinary marks. Summer. Question from very important topics are covered by NCERT Exemplar Class 7.. You also get idea about the type of questions and method to answer in your Class 7th examination. The process of taking out threads from the cocoon for use as silk is called reeling the silk. Which animal provides Pashmina shawls? Fibre to Fabric Class 7 MCQs Questions with Answers. Classification of objects into hot and cold objects using activity is presented in tabular form. The fibres are scoured again and dried. cows, buffaloes, goats etc.) NCERT Exemplar Class 7 Science is very important resource for students preparing for VII Board Examination.Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 7. 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MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. After scouring, sorting is done. Questions from all the topics are covered in the solutions. They are mainly reared in areas with low rainfall. Class 7 Social Science MCQs Questions with Answers Chapter Wise PDF Download. The most common silk moth is the mulberry silk moth. This covering is known as cocoon. These wool-yielding animals bear hair on their body. Then it swings its head from side to side in the form of the figure of eight (8). This process of selecting parents for obtaining special characters in their offspring, such as soft under hair in sheep. What are silkworms? In the rearing of silkworms, after 25 to 30 days the caterpillar stops to eating the fresh leaves of mulberry tree and move to a tiny chamber of bamboo in the tray to spin cocoons. What is selective breeding? The under fur of Kashmiri goat is soft. The farmers keep eggs under hygienic conditions and under suitable conditions of temperature and humidity. Name the sources of obtaining fibres. What is the importance of shearing process for getting wool? How is woollen cloth made after scouring hair of sheep? Rolling: In this process, the fibres are straightened, combed and rolled into yarn. Discuss the process of “rearing of silkworms” which is done by the farmers. Question 9. Air is a poor conductor of heat. They are also fed on a mixture of pulses, corn, jowar, oil cakes and minerals. For more info feel free to reach us and we will guide you at the earliest possibility. In the rearing of silkworms, after how many days the caterpillar stop to eating the leaves of mulberry tree? What are burrs? Fibre to Fabric Class 7 Extra Questions Science Chapter 3 Fibre to Fabric Class 7 Science Extra Questions Very Short Answer Type Question 1. Stay connected to our site to avail latest updates on Extra Questions for Various Classes instantly. 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