{"id":4126,"date":"2016-05-06T11:49:00","date_gmt":"2016-05-06T11:49:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-9-science-is-matter-around-us-pure-part-1\/"},"modified":"2018-06-07T12:55:27","modified_gmt":"2018-06-07T07:25:27","slug":"ncert-solutions-for-class-9-science-is-matter-around-us-pure-part-1","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-9-science-is-matter-around-us-pure-part-1\/","title":{"rendered":"NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1"},"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-9-science-is-matter-around-us-pure-part-1\/#NCERT_Class_9_Science_Chapter_wise_Solutions\" >NCERT Class 9 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-9-science-is-matter-around-us-pure-part-1\/#NCERT_Solutions_for_Class_9_Science_Is_Matter_around_Us_Pure_part_1\" >NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1<\/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-9-science-is-matter-around-us-pure-part-1\/#1_What_is_meant_by_a_substance\" >1. What is meant by a substance?<\/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-9-science-is-matter-around-us-pure-part-1\/#2_List_the_points_of_differences_between_homogeneous_and_heterogeneous_mixtures\" >2. List the points of differences between homogeneous and heterogeneous mixtures.<\/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-9-science-is-matter-around-us-pure-part-1\/#1_Differentiate_between_homogeneous_and_heterogeneous_mixtures_with_examples\" >1. Differentiate between homogeneous and heterogeneous mixtures with examples.<\/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-9-science-is-matter-around-us-pure-part-1\/#2_How_are_sol_solution_and_suspension_different_from_each_other\" >2. How are sol, solution and suspension different from each other?<\/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-9-science-is-matter-around-us-pure-part-1\/#3_To_make_a_saturated_solution_36_g_of_sodium_chloride_is_dissolved_in_100_g_of_water_at_293_K_Find_its_concentration_at_this_temperature\" >3. To make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at 293 K. Find its concentration at this temperature.<\/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-9-science-is-matter-around-us-pure-part-1\/#1_How_will_you_separate_a_mixture_containing_kerosene_and_petrol_difference_in_their_boiling_points_is_more_than_which_are_miscible_with_each_other\" >1. How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than), which are miscible with each other?<\/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-9-science-is-matter-around-us-pure-part-1\/#2_Name_the_technique_to_separate\" >2. Name the technique to separate<\/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-9-science-is-matter-around-us-pure-part-1\/#3_What_type_of_mixtures_are_separated_by_the_technique_of_crystallisation\" >3. What type of mixtures are separated by the technique of crystallisation?<\/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-9-science-is-matter-around-us-pure-part-1\/#1_Classify_the_following_as_chemical_or_physical_changes\" >1. Classify the following as chemical or physical changes:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-9-science-is-matter-around-us-pure-part-1\/#2_Try_segregating_the_things_around_you_as_pure_substances_or_mixtures\" >2. Try segregating the things around you as pure substances or mixtures.<\/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-13\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-9-science-is-matter-around-us-pure-part-1\/#NCERT_Solutions_for_Class_9_Science\" >NCERT Solutions for Class 9 Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-9-science-is-matter-around-us-pure-part-1\/#CBSE_app_for_Class_9\" >CBSE app for Class 9<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1 Class 9 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 9 Science chapter wise NCERT solution for Science Book for 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\u00a0Is Matter around Us Pure <a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-09-science\/1218\/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\/09_Science_Book.jpg\" alt=\"NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1\" width=\"190\" height=\"255\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Class_9_Science_Chapter_wise_Solutions\"><\/span><span class=\"underline-text\">NCERT Class 9 Science Chapter wise Solutions<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>01 \u2013 \u00a0Matter in Our Surroundings<\/li>\n<li>02 \u2013 Is Mattter Around us Pure<\/li>\n<li>03 \u2013 Atoms and Molecules<\/li>\n<li>04 \u2013 Structure of the Atom<\/li>\n<li>05 \u2013 The Fundamental Unit of Life<\/li>\n<li>06 \u2013 Tissues<\/li>\n<li>07 \u2013 Diversity in Living Organisms<\/li>\n<li>08 \u2013 Motion<\/li>\n<li>09 \u2013 Force and Laws of Motion<\/li>\n<li>10 \u2013 Gravitation<\/li>\n<li>11 \u2013 Word and Energy<\/li>\n<li>12 \u2013 Sound<\/li>\n<li>13 \u2013 Why Do We Fall Ill<\/li>\n<li>14 \u2013 Natural Resources<\/li>\n<li>15 \u2013 Improvement in Food Resources<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_9_Science_Is_Matter_around_Us_Pure_part_1\"><\/span>NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"1_What_is_meant_by_a_substance\"><\/span><strong>1. What is meant by a substance?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>Substance can be defined as that kind of matter where constituent particles cannot be separated from each other by any physical process since they are all similar in chemical properties.<\/p>\n<hr \/>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_List_the_points_of_differences_between_homogeneous_and_heterogeneous_mixtures\"><\/span><strong>2. List the points of differences between homogeneous and heterogeneous mixtures.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" id=\"Picture 7\" style=\"height: 259px; width: 651px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/09\/science\/ch02\/image001.png\" \/><\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"1_Differentiate_between_homogeneous_and_heterogeneous_mixtures_with_examples\"><\/span><strong>1. Differentiate between homogeneous and heterogeneous mixtures with examples.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" id=\"Picture 8\" style=\"height: 238px; width: 646px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/09\/science\/ch02\/image002.png\" \/><\/p>\n<hr \/>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_How_are_sol_solution_and_suspension_different_from_each_other\"><\/span><strong>2. How are sol, solution and suspension different from each other?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" id=\"Picture 10\" style=\"height: 323px; width: 648px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/09\/science\/ch02\/image003.png\" \/><\/p>\n<hr \/>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"3_To_make_a_saturated_solution_36_g_of_sodium_chloride_is_dissolved_in_100_g_of_water_at_293_K_Find_its_concentration_at_this_temperature\"><\/span><strong>3. To make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at 293 K. Find its concentration at this temperature.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>Mass of sodium chloride (solute) = 36 g<\/p>\n<p style=\"text-align: justify;\">Mass of water (solvent) = 100 g<\/p>\n<p style=\"text-align: justify;\">Mass of solution = 36 + 100 = 136 g<\/p>\n<p style=\"text-align: justify;\">Therefore, concentration percentage = mass of solute\/mass of solution <img decoding=\"async\" style=\"height: 19px; width: 37px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/09\/science\/ch02\/image004.png\" \/><\/p>\n<p style=\"text-align: justify;\"><img decoding=\"async\" style=\"height: 42px; width: 84px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/09\/science\/ch02\/image005.png\" \/> = 26.47 %<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"1_How_will_you_separate_a_mixture_containing_kerosene_and_petrol_difference_in_their_boiling_points_is_more_than_which_are_miscible_with_each_other\"><\/span><strong>1. How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than<img decoding=\"async\" style=\"height: 19px; width: 40px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/09\/science\/ch02\/image006.png\" \/>), which are miscible with each other?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>We can separate a mixture containing kerosene and petrol by distillation technique since difference in their boiling points is more than<img decoding=\"async\" style=\"height: 19px; width: 39px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/09\/science\/ch02\/image007.png\" \/>. So through distillation we can get them separated.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_Name_the_technique_to_separate\"><\/span><strong>2. Name the technique to separate <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>(i) butter from curd,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(ii) salt from sea-water,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>(iii) camphor from salt.<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. (i)<\/strong> centrifugation method.<\/p>\n<p style=\"text-align: justify;\"><strong>(ii) <\/strong>evaporation method.<\/p>\n<p style=\"text-align: justify;\"><strong>(iii) <\/strong>sublimation method.<\/p>\n<hr \/>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"3_What_type_of_mixtures_are_separated_by_the_technique_of_crystallisation\"><\/span><strong>3. What type of mixtures are separated by the technique of crystallisation?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>From impure samples of solids, pure solid crystals can be obtained by the method of crystallization for eg to obtain pure sugar from impure sample of the same.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1<\/p>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"1_Classify_the_following_as_chemical_or_physical_changes\"><\/span><strong>1. Classify the following as chemical or physical changes:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>\u2022 cutting of trees,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>\u2022 melting of butter in a pan,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>\u2022 rusting of almirah,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>\u2022 boiling of water to form steam,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>\u2022 passing of electric current, through water and the water breaking down into hydrogen and oxygen gases,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>\u2022 dissolving common salt in water,<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>\u2022 making a fruit salad with raw fruits, and<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>\u2022 burning of paper and wood.<\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>cutting of trees = chemical change<\/p>\n<p style=\"text-align: justify;\">melting of butter in a pan = physical change<\/p>\n<p style=\"text-align: justify;\">rusting of almirah = chemical change<\/p>\n<p style=\"text-align: justify;\">boiling of water to form steam = physical change<\/p>\n<p style=\"text-align: justify;\">passing of electric current, through water and the water breaking down into hydrogen and oxygen gases = chemical change<\/p>\n<p style=\"text-align: justify;\">dissolving common salt in water = physical change<\/p>\n<p style=\"text-align: justify;\">making a fruit salad with raw fruits = physical change<\/p>\n<p style=\"text-align: justify;\">burning of paper and wood = chemical change<\/p>\n<hr \/>\n<h6 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_Try_segregating_the_things_around_you_as_pure_substances_or_mixtures\"><\/span><strong>2. Try segregating the things around you as pure substances or mixtures.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p style=\"text-align: justify;\"><strong>Ans. <\/strong>You can do it by yourself like try mixing chalk powder and water then separate them.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_9_Science\"><\/span>NCERT Solutions for Class 9 Science<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions Class 9 Science PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 9 Science includes text book solutions .NCERT Solutions for CBSE Class 9 Science have total 15 chapters. 9 Science NCERT Solutions in PDF for free Download on our website. Ncert Science class 9 solutions PDF and Science ncert class 9 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_Class_9\"><\/span>CBSE app for Class 9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To download\u00a0NCERT Solutions for class 9 Science, Computer Science, Home Science,Hindi ,English, Maths Social 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","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1 Class 9 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 &#8230; <a title=\"NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-9-science-is-matter-around-us-pure-part-1\/\" aria-label=\"More on NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":-1,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[281,1377],"tags":[283,1344,216,349],"class_list":["post-4126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-solutions","category-science-cbse-class-09","tag-cbse-study-material","tag-class-9","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 9 Science Is Matter around Us Pure part 1<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for Class 9 Science Is Matter around Us Pure part 1 in PDF format for free download. 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