{"id":25214,"date":"2025-06-13T20:35:10","date_gmt":"2025-06-13T15:05:10","guid":{"rendered":"https:\/\/onlinefreenotes.com\/?p=25214"},"modified":"2025-12-12T07:31:27","modified_gmt":"2025-12-12T07:31:27","slug":"science-class-10-nbse-ncert","status":"publish","type":"post","link":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/science-class-10-nbse-ncert\/","title":{"rendered":"Science Class 10 questions and answers"},"content":{"rendered":"\n<p>Get summaries, questions, answers, solutions, notes, extras, PDF and guides for Science Class 10 textbook, which is part of the syllabus for students studying under <a href=\"https:\/\/site.sebaonline.org\/\" target=\"_blank\" rel=\"noopener\">SEBA <\/a>(Assam Board), <a href=\"https:\/\/nbsenl.edu.in\/\" target=\"_blank\" rel=\"noopener\">NBSE <\/a>(Nagaland Board), <a href=\"https:\/\/tbse.tripura.gov.in\/\" target=\"_blank\" rel=\"noopener\">TBSE <\/a>(Tripura Board), <a href=\"https:\/\/www.cbse.gov.in\/\" target=\"_blank\" rel=\"noopener\">CBSE <\/a>(Central Board), <a href=\"https:\/\/www.mbose.in\/\" target=\"_blank\" rel=\"noopener\">MBOSE <\/a>(Meghalaya Board), <a href=\"https:\/\/www.bsem.nic.in\/\" target=\"_blank\" rel=\"noopener\">BSEM <\/a>(Manipur Board), <a href=\"https:\/\/wbbse.wb.gov.in\/\" target=\"_blank\" rel=\"noopener\">WBBSE <\/a>(West Bengal Board), and all other boards following the <a href=\"https:\/\/ncert.nic.in\/\" target=\"_blank\" rel=\"noopener\">NCERT <\/a>books. These solutions, however, should only be treated as references and can be modified\/changed.<\/p>\n\n\n  <style>\r\n    .notice {\r\n      background: yellow;       \/* simple yellow background *\/\r\n      text-align: center;       \/* centre alignment *\/\r\n      padding: 12px 16px;\r\n      margin: 20px auto;\r\n      width: fit-content;       \/* shrink to text and centre via auto margins *\/\r\n      font-family: Arial, sans-serif;\r\n    }\r\n  <\/style>\r\n  <div class=\"notice\">\r\n    If you notice any errors in the notes, please mention them in the comments\r\n  <\/div>\r\n<nav id=\"toc\" class=\"toc-box\"><\/nav>\r\n<style>\r\n.toc-box{\r\n  border:1px solid #e5e7eb;\r\n  border-radius:8px;\r\n  background:#fff;\r\n  margin:20px 0;\r\n  font-family:Arial, Helvetica, sans-serif\r\n}\r\n.toc-header{\r\n  padding:10px 14px;\r\n  font-size:16px;\r\n  font-weight:600;\r\n  border-bottom:1px solid #eef2f7;\r\n  background:#f8fafc\r\n}\r\n.toc-content{\r\n  padding:12px 18px\r\n}\r\n\r\n\/* Base list *\/\r\n.toc-content ul{\r\n  margin:0 25px;\r\n  padding-left:0;\r\n  list-style:none\r\n}\r\n\r\n\/* Level-based bullets *\/\r\n.toc-content li{\r\n  position:relative;\r\n  margin:6px 0;\r\n  margin-left:6px;\r\n  line-height:1.5;\r\n\tlist-style:disc;\r\n}\r\n\r\n\/* H2 bullet \u25cf *\/\r\n.toc-content li.level-2{\r\n  list-style:disc;\r\n\t\r\n}\r\n\r\n\/* H3 bullet \u25cb *\/\r\n.toc-content li.level-3{\r\n  margin-left:26px;\r\n\tlist-style:disc;\r\n}\r\n\r\n\r\n\/* H4+ bullet \u2013 *\/\r\n.toc-content li.level-4{\r\n  margin-left:46px;\r\n\tlist-style:disc;\r\n}\r\n.toc-content li.level-5,\r\n.toc-content li.level-6{\r\n  margin-left:66px;\r\n\tlist-style:disc;\r\n}\r\n\r\n.toc-content a{\r\n  text-decoration:none;\r\n  color:#000\r\n}\r\n.toc-content a:hover{\r\n  text-decoration:underline\r\n}\r\n\r\nhtml{scroll-behavior:smooth}\r\nh1[id],h2[id],h3[id],h4[id],h5[id],h6[id]{\r\n  scroll-margin-top:110px\r\n}\r\n<\/style>\r\n\r\n<script>\r\ndocument.addEventListener('DOMContentLoaded', function () {\r\n\r\n  const toc = document.getElementById('toc');\r\n  if (!toc) return;\r\n\r\n  \/* MAIN CONTENT ONLY *\/\r\n  const content = document.querySelector('#pdf-content');\r\n\r\n  \/* EXCLUDE AREAS *\/\r\n  const excludeSelectors = `\r\n    .author, .byline, .entry-meta, .post-meta,\r\n    #comments, .comments-area, .comment-respond,\r\n    .comment-form, .comment-list,\r\n    .login, .login-required,\r\n    .sidebar, aside, footer, nav,\r\n    .widget, .widgets\r\n  `;\r\n\r\n  \/* TEXT TO IGNORE *\/\r\n  const ignoreText = [\r\n    'leave a comment',\r\n    'cancel reply',\r\n    'login required',\r\n    'get notes',\r\n    'ron\\'e dutta',\r\n    'comments'\r\n  ];\r\n\r\n  \r\nconst headings = [...content.querySelectorAll('h1,h2,h3,h4,h5,h6')]\r\n  .filter(h => !excludeSelectors || !h.closest(excludeSelectors))\r\n  .filter(h => {\r\n    const txt = h.textContent.trim().toLowerCase();\r\n    return txt.length > 0 && !ignoreText.some(t => txt.includes(t));\r\n  });\r\n\r\n\/\/alert(content);\r\n  if (!headings.length) {\r\n    toc.style.display = 'none';\r\n    return;\r\n  }\r\n\r\n  \/* UNIQUE IDs *\/\r\n  const used = {};\r\n  const slug = t => t.toLowerCase().trim()\r\n    .replace(\/[^a-z0-9\\s-]\/g, '')\r\n    .replace(\/\\s+\/g, '-');\r\n\r\n  headings.forEach(h => {\r\n    if (!h.id) {\r\n      let base = slug(h.textContent) || 'section';\r\n      used[base] = (used[base] || 0) + 1;\r\n      h.id = used[base] > 1 ? base + '-' + used[base] : base;\r\n    }\r\n  });\r\n\r\n  \/* BUILD TOC *\/\r\n  const ul = document.createElement('ul');\r\n\r\n  headings.forEach(h => {\r\n    const level = parseInt(h.tagName.substring(1));\r\n    if (level < 2) return; \/\/ skip H1 like your reference site\r\n\r\n    const li = document.createElement('li');\r\n    li.className = 'level-' + level;\r\n\r\n    const a = document.createElement('a');\r\n    a.href = '#' + h.id;\r\n    a.textContent = h.textContent.trim();\r\n\r\n    li.appendChild(a);\r\n    ul.appendChild(li);\r\n  });\r\n\r\n  toc.innerHTML = `\r\n    <div class=\"toc-header\">Table of Contents<\/div>\r\n    <div class=\"toc-content\"><\/div>\r\n  `;\r\n  toc.querySelector('.toc-content').appendChild(ul);\r\n\r\n});\r\n<\/script>\r\n\n\n\n\n<h4 class=\"wp-block-heading\" id=\"NBSE_Rationalised_chapters\"><strong>Rationalised chapters<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>Chapter 1: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/chemical-reactions-and-equations\/\">Chemical Reactions and Equations<\/a><\/td><\/tr><tr><td>Chapter 2: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/acids-bases-salts\/\">Acids, Bases and Salts<\/a><\/td><\/tr><tr><td>Chapter 3: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/metals-and-nonmetals\/\">Metals and Non-metals<\/a><\/td><\/tr><tr><td>Chapter 4: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/carbon-and-its-compounds\/\">Carbon and its Compounds<\/a><\/td><\/tr><tr><td>Chapter 5: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/life-process\/\">Life Processes<\/a><\/td><\/tr><tr><td>Chapter 6: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/control-and-coordination\/\">Control and Coordination<\/a><\/td><\/tr><tr><td>Chapter 7: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/how-do-organisms-reproduce\/\">How do Organisms Reproduce?<\/a><\/td><\/tr><tr><td>Chapter 8: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/heredity-class-10-science\/\">Heredity<\/a><\/td><\/tr><tr><td>Chapter 9: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/light-reflection-and-refraction\/\">Light \u2013 Reflection and Refraction<\/a><\/td><\/tr><tr><td>Chapter 10: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/human-eye-and-colorful-world\/\">The Human Eye and the Colourful World<\/a><\/td><\/tr><tr><td>Chapter 11: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/electricity-class-10-science-answers-notes\/\">Electricity<\/a><\/td><\/tr><tr><td>Chapter 12: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/magnetic-effects-of-electrical-current\/\">Magnetic Effects of Electric Current<\/a><\/td><\/tr><tr><td>Chapter 13: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/our-environment-class-10-science\/\">Our Environment<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"Summary\"><strong>All chapters [NCERT]<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>Chapter 1: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/chemical-reactions-and-equations\/\">Chemical Reactions and Equations<\/a><\/td><\/tr><tr><td>Chapter 2: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/acids-bases-salts\/\">Acids, Bases and Salts<\/a><\/td><\/tr><tr><td>Chapter 3: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/metals-and-nonmetals\/\">Metals and Non-metals<\/a><\/td><\/tr><tr><td>Chapter 4: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/carbon-and-its-compounds\/\">Carbon and its Compounds<\/a><\/td><\/tr><tr><td>Chapter 5: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/periodic-classification-of-elements\/\">Periodic Classification of Elements<\/a><\/td><\/tr><tr><td>Chapter 6: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/life-process\/\">Life Processes<\/a><\/td><\/tr><tr><td>Chapter 7: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/control-and-coordination\/\">Control and Coordination<\/a><\/td><\/tr><tr><td>Chapter 8: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/how-do-organisms-reproduce\/\">How do Organisms Reproduce?<\/a><\/td><\/tr><tr><td>Chapter 9: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/heredity-and-evolution\/\">Heredity ane Evolution<\/a><\/td><\/tr><tr><td>Chapter 10:<a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/light-reflection-and-refraction\/\"> Light \u2013 Reflection and Refraction<\/a><\/td><\/tr><tr><td>Chapter 11: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/human-eye-and-colorful-world\/\">The Human Eye and the Colourful World<\/a><\/td><\/tr><tr><td>Chapter 12: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/electricity-class-10-science-answers-notes\/\">Electricity<\/a><\/td><\/tr><tr><td>Chapter 13: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/magnetic-effects-of-electrical-current\/\">Magnetic Effects of Electric Current<\/a><\/td><\/tr><tr><td>Chapter 14: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/sources-of-energy\/\">Sources of Energy<\/a><\/td><\/tr><tr><td>Chapter 15: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/our-environment-class-10-science\/\">Our Environment<\/a><\/td><\/tr><tr><td>Chapter 16: <a href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/sustainable-management-of-resources\/\">Sustainable Management of Natural Resources<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"Textbook_Total_History_solutions\">About Science Class 10 textbook<\/h4>\n\n\n\n<p>Science Class 10 presents key concepts from various scientific fields. This subject helps build a strong base for future learning and aids in understanding everyday phenomena. The syllabus includes topics in chemistry, biology, physics, and environmental science.<\/p>\n\n\n\n<p>Chemistry studies begin with&nbsp;Chapter 1: Chemical Reactions and Equations. It explains how substances interact to form new ones and teaches writing balanced chemical equations.&nbsp;Chapter 2: Acids, Bases and Salts&nbsp;covers the distinct properties of these compounds, their chemical reactions, and the pH scale.&nbsp;Chapter 3: Metals and Non-metals&nbsp;explores their physical and chemical characteristics, and methods for extracting metals.&nbsp;Chapter 4: Carbon and its Compounds&nbsp;highlights carbon&#8217;s unique bonding ability, forming many organic molecules.<\/p>\n\n\n\n<p>The biology section includes&nbsp;Chapter 5: Life Processes. This chapter details essential activities like nutrition, respiration, internal transport, and excretion in living beings.&nbsp;Chapter 6: Control and Coordination&nbsp;examines how organisms respond to stimuli, covering nervous and hormonal systems in animals and plants.&nbsp;Chapter 7: How do Organisms Reproduce?&nbsp;describes various reproduction methods, including the human reproductive system.&nbsp;Chapter 8: Heredity&nbsp;introduces principles of how genetic traits are passed to offspring.<\/p>\n\n\n\n<p>Physics concepts are explored starting with&nbsp;Chapter 9: Light \u2013 Reflection and Refraction. This chapter explains light&#8217;s behavior, including reflection by mirrors and refraction through lenses.&nbsp;Chapter 10: The Human Eye and the Colourful World&nbsp;details human eye functioning and optical phenomena like light scattering.&nbsp;Chapter 11: Electricity&nbsp;introduces electric current, resistance, Ohm&#8217;s law, and electric circuits.&nbsp;Chapter 12: Magnetic Effects of Electric Current&nbsp;explores electricity-magnetism connections, including magnetic fields, motors, and generators.<\/p>\n\n\n\n<p>The course concludes with&nbsp;Chapter 13: Our Environment. This chapter discusses ecosystems, energy flow through food chains, and human impact on the natural world. It also addresses issues like ozone depletion and waste management.<\/p>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Get summaries, questions, answers, solutions, notes, extras, PDF and guides for Science Class 10 textbook, which is part of the syllabus for students studying under SEBA (Assam Board), NBSE (Nagaland Board), TBSE (Tripura Board), CBSE (Central Board), MBOSE (Meghalaya Board), BSEM (Manipur Board), WBBSE (West Bengal Board), and all other boards following the NCERT books.&hellip; <a class=\"more-link\" href=\"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/science-class-10-nbse-ncert\/\">Continue reading <span class=\"screen-reader-text\">Science Class 10 questions and answers<\/span><\/a><\/p>\n","protected":false},"author":1044,"featured_media":5711,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[27,28,29,30,153,33,35,36,18,37,38],"class_list":["post-25214","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notes","tag-27","tag-answers","tag-class-10","tag-extras","tag-ncert","tag-notes","tag-pdf","tag-questions","tag-science","tag-solutions","tag-summary","entry"],"acf":[],"_links":{"self":[{"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/posts\/25214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/users\/1044"}],"replies":[{"embeddable":true,"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/comments?post=25214"}],"version-history":[{"count":2,"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/posts\/25214\/revisions"}],"predecessor-version":[{"id":30183,"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/posts\/25214\/revisions\/30183"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/media\/5711"}],"wp:attachment":[{"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/media?parent=25214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/categories?post=25214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mockupbw.site\/2025\/onlinefreenotes\/wp-json\/wp\/v2\/tags?post=25214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}