with different textures are obtained from different varieties of silk moths. Ans. Sericulture is the breeding and management of silkworms for the production of silk. CBSE CLASS 7 STUDY MATERIAL NCERT TEXTBOOK SOLUTION. Name some animals which give us wool. Silk thread is then bleached. Given below are the links of some of the reference books for class 7 math. Class 7 - Chemistry - Fibre to Fabric. History of silk. Q.6. Thus, the meaning of sericulture or silk farming is the cultivation of silkworms or silk moths to produce silk. (A) Which parts of the black sheep have wool? Question 1. A material which is composed of thin and continuous strands is known as fiber. For easy access, we at BYJU’S provide free class 7 Science Chapter 3 NCERT solutions in PDF format. Is silk a good conductor of heat? they feed on mulberry leaves and consume a large amount of these leaves for around 30 days before going to the next stage. Use hints to fill in the blank spaces with letters that complete the words. The silkworm is (A) a caterpillar, (B) a larva. Silk fibre is made of a protein. In winters they are kept indoors and fed on dry fodder, leaves and grains. with different textures are obtained from different varieties of silk moths. Given below is a sequence of steps in the processing of wool. sheep, goat and yak . (B) White fleece of lamb means the white hair (or fibres) present on the skin of lamb. question_answer Answers(3) edit Answer . Wheat c. Millets d. Rice. (A) The fine and soft under-hair that grow close to the skin of the sheep have wool. Visit http://www.meritnation.com for more videos for your class! The fibres which are obtained from plants and animals are known as natural fibres whereas synthetic fibres are man-made fibres. mulberry silk, Tassar silk, etc.) Which leads the world in silk production? Class 7 Science Chapter 3 MCQ tests with answers and explanation are given below. Question 5. The rearing of silkworms for obtaining silk is called sericulture. Q 8. Mar 8, 2014. Hints: Answer: Wool yielding animals are sheep, yak, llama, […] Sericulture; Answer: 1. Reflection and absorption of heat: When heat falls over an object some of the heat is absorbed by the body and some of the heat is reflected. Answer: The sources of obtaining fibres are plants and animals. Fibre can be of two types: natural fibre and synthetic fibre. You must be familiar with the following nursery rhymes: (ii) 'Mary had a little lamb, whose fleece was white as snow.' The caterpillar or larvae are hatched from the eggs of the silk moth. (B) What is meant by the white fleece of the lamb? What is called reeling the silk? Q4. Shearing : To obtain wool, the fleece of the sheep along with a thin layer of skin is removed from its body. edurite com 7th … (iii) Sericulture: Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk. Silk is a type of natural fiber or animal fiber. What is the scientific name of mulberry? what do you mean by sericulture respiration in organisms. The life history of a silk moth is an interesting story. Use hints to fill in the blank spaces with letters that complete the words. Rearing of the silkworm is known as sericulture. Shifting agriculture c. Primitive farming d. Plantation agriculture. (i) 'Baa baa black sheep, have you any wool.' Ltd. 308, iThum Towers, A-40, Noida 201301. Add them. In the pupa stage, a weave is netted around by the silkworm to hold itself. for commercial purposes. 8) Which factors are vital for agricultural activities? (ii) … | EduRev Class 7 Question is disucussed on EduRev Study Group by 131 Class 7 Students. SERICULTURE ART OF RAISING BOMBYX MORI SILKWORMS POSTS. Hints: (i) Silk production involves cultivation of mulberry leaves and rearing silkworms. BSc Agriculture is an undergraduate course of 4 years duration that allows students to gain expertise in the field of agricultural science. Question 2. 10) What is agriculture sericulture pisiculture viticulture and horticulture? III. We realise that students transitioning from the middle to senior school have specific requirements with regard to monitoring of performance and guidance at each step. It begins when the female moth lays eggs. for meat, and other useful products. A female moth lays more than 350 eggs at a time. Which are the missing steps? Super Answer . The fibers which are obtained from plants and animals are known as natural fibers whereas synthetic fibers are man-made fibers. or n the rearing of silkworms for the production of raw silk ˌseriˈcultural adj ˌseriˈculturist n Collins English Dictionary – Complete and Unabridged, 12th... Sericulture - definition of sericulture by The Free Dictionary. Shearing, Scouring, Sorting, Carding, Fibre dyeing, Spinning. NCERT 7th Class (CBSE) Science: Fibre to Fabric admin September 2, 2017 7th Class , Science 5 Comments 17,160 Views Question: Mention the place and type of wool that is obtained from the following breeds of sheep. ANIMAL 4 / 18. (i) Rearing (ii) Shearing (iii) Sericulture. What do you mean by yarn? (i) Yak (ii) Camel (iii) Goat (iv) Woolly dog, What is meant by the following terms? Ans. Keep it up and keep going forward. The caterpillar hatches from a … Sericulture is a very old occupation in India. Technological advancement and new developments have enabled manufacturers to produce different types of silk from different silkworms on the basis of lustre and texture. (b) Shearing: The removal of wool from the sheep is called shearing. India is the 2 nd largest producer of silk in the world after China and Karnataka is the largest producer of silk in India. Intensive farming b. Ans. Welcome students, Read and learn the Class 7 science chapter 3 notes for revision, homework and for examinations purpose. Rearing: The bringing up and looking after the sheep is called rearing. Sericulture is the breeding and management of silkworms for the production of silk. 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. Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk. Match the words of Column I with those given in Column II : SOLUTION: The process of removing the woolen fleece of sheep along with a thin layer of skin is called shearing. c. Sericulture d. None of these. (ii) Shearing: The process of removing the fleece of the sheep alongwith thin layer of skin is called shearing. After attempting 3 or 4 tests out of these 20 tests, you will feel confident about this chapter. Name some wool yielding animals. Syeda. Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk. Sericulture is the process of raising silkworms for their silk. Reference Books for class 7 Science. Also, get various engaging video lessons to learn more effectively. Q. Sericulture is the breeding and management of silkworms for the production of silk. (c) Sericulture - The rearing of silkworm for obtaining silk is known as sericulture. Which leads the world in silk production? (c) Sericulture. NCERT Exemplar Problems Class 7 Science Chapter 3 Fibre to Fabric. Examples of natural fibers are cotton and silk whereas examples of synthetic fibers are: nylon, polyester, etc. Check the below NCERT MCQ Questions for Class 7 Science Chapter 3 Fibre to Fabric with Answers Pdf free download. Your email address will not be published. Answer: Silk fibres are animal fibres obtained from cocoons of the silkworm. Class 7 Important Questions for Science – Fibre to Fabric. Science for Class 7 by Lakhmir Singh; Science Foundation Course For JEE/NEET/NSO/Olympiad - Class 7; CBSE All In One Science Class 7 by Arihant Experts (Author) IIT Foundation Physics, Chemistry & Maths for Class 7 Different types of silk (e.g. The silkworms feed on mulberry leaves and give rise to pupa. Our notes of Chapter 3 Fibre to Fabric are prepared by Maths experts in an easy to remember format, covering all syllabus of CBSE, KVPY, NTSE, Olympiads, NCERT & other Competitive Exams. The temperature of an object increases because of absorption of heat. A fiber can be of two types: natural fiber and synthetic fiber. What is meant by the following terms ? Define sericulture. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. On the mountage, the ripe worms exude silk, spin the cocoon around itself and transformed into the pupa inside it. They are also fed on a mixture of pulses, corn, jowar, oil cakes and minerals. Very nice answer will understand more faster, It was helpful for me to understand. ... Shearing (iii) Sericulture Answer: (i) Rearing: Rearing means helping someone to grow up. Question 8: Match the words of Column I with those given in Column II: Question 9: Given below is a crossword puzzle based on this lesson. It is right to the question. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. Given below is a sequence of steps in the processing of wool. 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. Sericulture 1 authorSTREAM. what is the Staple diet of tropical region? 3 Thank You. Question 7. Name some animals which give us wool. All the questions of this chapter are important for school tests and exams. mulberry silk, Tassar silk, etc.) Shearing: The fleece of the sheep along with a thin layer of skin is removed from its body. Sericulture is the process of rearing silkworms to generate silk. In conventional room heater you can see the reflector attached with it. The production of silk generally involves two processes: The silkworm caterpillar builds its cocoon by producing and surrounding itself with a long, Thank you . Silk is a natural fibre which is obtained from an insect (called silk moth). Out of the following, which are the two terms related to silk production? In this stage, the pupa changes into an adult moth. Silk Technology (Sericulture). sericulture synonyms, sericulture pronunciation, sericulture translation, English dictionary definition of sericulture.

what is sericulture class 7th

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