{"id":4761,"date":"2016-05-18T09:49:00","date_gmt":"2016-05-18T04:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-8-science-03-synthetic-fibres-and-plastics\/"},"modified":"2019-04-19T15:51:10","modified_gmt":"2019-04-19T10:21:10","slug":"ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/","title":{"rendered":"NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#NCERT_Class_8_Science_Chapter_wise_Solutions\" >NCERT Class 8 Science Chapter wise Solutions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#NCERT_Solutions_for_Class_8_Science_Synthetic_Fibres_and_Plastics\" >NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<\/a><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#Class%E2%80%93VIII_Science_NCERT_SOLUTION\" >Class\u2013VIII Science NCERT SOLUTION<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#Ch-3_Sythetic_Fibres_and_Plastics\" >Ch-3 Sythetic Fibres and Plastics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#1_Explain_why_some_fibres_are_called_synthetic\" >1. Explain why some fibres are called synthetic.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#2_Mark_the_correct_answers\" >2. Mark () the correct answers.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#3_Fill_in_the_blanks_with_appropriate_words\" >3. Fill in the blanks with appropriate words.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#4_Give_examples_which_indicate_that_nylon_fibres_are_very_strong\" >4. Give examples which indicate that nylon fibres are very strong.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#5_Explain_why_plastic_containers_are_flavored_for_storing_food\" >5. Explain why plastic containers are flavored for storing food.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#6_Explain_the_difference_between_thermoplastic_and_thermosetting_plastics\" >6. Explain the difference between thermoplastic and thermosetting plastics.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#7_Explain_why_the_following_are_made_of_thermosetting_plastics\" >7. Explain why the following are made of thermosetting plastics.<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#NCERT_solutions_for_Class_8_Science\" >NCERT solutions for Class 8 Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/#CBSE_app_for_Students\" >CBSE app for Students<\/a><\/li><\/ul><\/nav><\/div>\n<div>\n<p>NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics Class 8 Science book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 8 Science chapter wise NCERT solution for Class 8 Science all the chapters can be downloaded from our website and myCBSEguide mobile app for free.<\/p>\n<p style=\"text-align: center;\"><strong>NCERT solutions for Science\u00a0Synthetic Fibres and Plastics <a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-08-science\/1466\/ncert-solutions\/5\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/08_Science_Book.jpg\" alt=\"NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics\" width=\"161\" height=\"200\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_8_Science_Chapter_wise_Solutions\"><\/span>NCERT Class 8 Science Chapter wise Solutions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>1 \u2013 Crop Production and Management<\/li>\n<li>2 \u2013 Microorganisms : Friend and Foe<\/li>\n<li>3 \u2013 Synthetic Fibres and Plastics<\/li>\n<li>4 \u2013 Materials : Metals and Non-Metals<\/li>\n<li>5 \u2013 Coal and Petroleum<\/li>\n<li>6 \u2013 Combustion and Flame<\/li>\n<li>7 \u2013 Conservation of Plants and Animals<\/li>\n<li>8 \u2013 Cell \u2013 Structure and Functions<\/li>\n<li>9 \u2013 Reproduction in Animals<\/li>\n<li>10 \u2013 Reaching The Age of Adolescence<\/li>\n<li>11 \u2013 Force and Pressure<\/li>\n<li>12 \u2013 Friction<\/li>\n<li>13 \u2013 Sound<\/li>\n<li>14 \u2013 Chemical Effects of Electric Current<\/li>\n<li>15 \u2013 Some Natural Phenomena<\/li>\n<li>16 \u2013 Light<\/li>\n<li>17 \u2013 Stars and The Solar System<\/li>\n<li>18 \u2013 Pollution of Air and Water<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_8_Science_Synthetic_Fibres_and_Plastics\"><\/span>NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h6 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"Class%E2%80%93VIII_Science_NCERT_SOLUTION\"><\/span><strong>Class\u2013VIII Science NCERT SOLUTION<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<h6 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"Ch-3_Sythetic_Fibres_and_Plastics\"><\/span><strong>Ch-3 Sythetic Fibres and Plastics<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<h6><span class=\"ez-toc-section\" id=\"1_Explain_why_some_fibres_are_called_synthetic\"><\/span><strong>1. Explain why some fibres are called synthetic.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Since man-made fibres are obtained by the synthesis of petrochemicals, they are called synthetic fibres.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<\/p>\n<h6><span class=\"ez-toc-section\" id=\"2_Mark_the_correct_answers\"><\/span><strong>2. Mark () the correct answers.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Rayon is different from synthetic fibres because<\/strong><\/p>\n<p><strong>(a) It has a silk like appearance.<\/strong><\/p>\n<p><strong>(b) It is obtained from wood pulp.<\/strong><\/p>\n<p><strong>(c) Its fibres can also be woven like those of natural fibres.<\/strong><\/p>\n<p><strong>Ans. (b)<\/strong> it is obtained from wood pulp.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<\/p>\n<h6><span class=\"ez-toc-section\" id=\"3_Fill_in_the_blanks_with_appropriate_words\"><\/span><strong>3. Fill in the blanks with appropriate words.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Synthetic fibres are also called &#8212;&#8212;&#8212;&#8211; or &#8212;&#8212;&#8212;&#8212; fibres.<\/strong><\/p>\n<p><strong>(b) Synthetic fibres are synthesized from raw material called &#8212;&#8212;&#8212;&#8211;.<\/strong><\/p>\n<p><strong>(c) Like synthetic fibres, plastic is also a &#8212;&#8212;&#8212;&#8212;&#8212;-.<\/strong><\/p>\n<p><strong>Ans. <\/strong>Fill in the blanks with appropriate words.<\/p>\n<p><strong>(a)<\/strong> Synthetic fibres are also called <strong><u>artificial<\/u><\/strong> or <strong><u>man-made<\/u><\/strong> fibres.<\/p>\n<p><strong>(b) <\/strong>Synthetic fibres are synthesized from raw material called <strong><u>polymer<\/u><\/strong>.<\/p>\n<p><strong>(c)<\/strong> Like synthetic fibres, plastic is also a <strong><u>petrochemicals<\/u><\/strong>.<\/p>\n<hr \/>\n<h6><span class=\"ez-toc-section\" id=\"4_Give_examples_which_indicate_that_nylon_fibres_are_very_strong\"><\/span><strong>4. Give examples which indicate that nylon fibres are very strong.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>They are used to make parachutes and ropes for rock climbing.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<\/p>\n<h6><span class=\"ez-toc-section\" id=\"5_Explain_why_plastic_containers_are_flavored_for_storing_food\"><\/span><strong>5. Explain why plastic containers are flavored for storing food.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>The main advantage of using plastic for storing food are-<\/p>\n<p><strong>a.<\/strong> Plastic has light weight.<\/p>\n<p><strong>b.<\/strong> Good strength.<\/p>\n<p><strong>c.<\/strong> Easy to handle.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<\/p>\n<h6><span class=\"ez-toc-section\" id=\"6_Explain_the_difference_between_thermoplastic_and_thermosetting_plastics\"><\/span><strong>6. Explain the difference between thermoplastic and thermosetting plastics.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong><\/p>\n<table class=\"mobile\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td style=\"height: 14.25pt; width: 110.9pt;\"><strong>Thermoplastic<\/strong><\/td>\n<td style=\"height: 14.25pt; width: 111.0pt;\"><strong>Thermosetting plastics<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"height: 112.75pt; width: 110.9pt;\">(i) These are the plastics which get deformed easily on heating and can be easily bent.<\/p>\n<p>(ii) These are used for making toys, combs and various types of containers.<\/p>\n<p>(iii) Ex- polythene, PVC.<\/td>\n<td style=\"height: 112.75pt; width: 111.0pt;\">(i) These are the plastics which when molded once cannot be softened by heating.<\/p>\n<p>(ii) Used for making electrical switches and handles of various utensils.<\/p>\n<p>(iii) Ex- Bakelite, melamine etc.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<\/p>\n<h6><span class=\"ez-toc-section\" id=\"7_Explain_why_the_following_are_made_of_thermosetting_plastics\"><\/span><strong>7. Explain why the following are made of thermosetting plastics.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Saucepan handles<\/strong><\/p>\n<p><strong>(b) Electric plug\/ switches \/plug boards<\/strong><\/p>\n<p><strong>Ans. (a) <\/strong>Saucepan handles: Saucepan handles are made from the thermosetting plastics because these are bad conductors of heat and electricity. They do not bend or deform on heating.<\/p>\n<p><strong>(b) <\/strong>Electric<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_solutions_for_Class_8_Science\"><\/span>NCERT solutions for Class 8 Science<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions Class 8 Science PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 8 Science includes text book solutions from Class 8 Science Book . NCERT Solutions for CBSE Class 8 Science have total 18 chapters. 8 Science NCERT Solutions in PDF for free Download on our website. Ncert Social Science class 8 solutions PDF and Science ncert class 8 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_app_for_Students\"><\/span>CBSE app for Students<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To download\u00a0NCERT Solutions for class 8 Social Science, Computer Science, Home Science,Hindi ,English, Maths Science do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics Class 8 Science book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. &#8230; <a title=\"NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-science-synthetic-fibres-and-plastics\/\" aria-label=\"More on NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":25902,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281,1383],"tags":[283,1523,216,349],"class_list":["post-4761","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-solutions","category-science-cbse-class-08","tag-cbse-study-material","tag-class-8","tag-ncert-solutions","tag-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for Class 8 Science Synthetic Fibres and Plastics in PDF format for free download. 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