{"id":25559233,"date":"2026-07-30T11:07:25","date_gmt":"2026-07-30T05:37:25","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=25559233"},"modified":"2026-07-30T11:59:27","modified_gmt":"2026-07-30T06:29:27","slug":"kerala-psc-everyday-science-questions-and-answers","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/kerala-psc-everyday-science-questions-and-answers\/","title":{"rendered":"Kerala PSC Everyday Science Questions &#038; Answers 2026 &#8211; Download 50 MCQs PDF"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a6b0a9e9f70c\" class=\"ez-toc-cssicon-toggle-label\"><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><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a6b0a9e9f70c\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/entri.app\/blog\/kerala-psc-everyday-science-questions-and-answers\/#Kerala_PSC_Everyday_Science_Questions_Answers_2026_%E2%80%93_Download_50_MCQs_PDF\" >Kerala PSC Everyday Science Questions &amp; Answers 2026 &#8211; Download 50 MCQs PDF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/entri.app\/blog\/kerala-psc-everyday-science-questions-and-answers\/#Why_Everyday_Science_Matters_in_Kerala_PSC_Exams\" >Why Everyday Science Matters in Kerala PSC Exams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/entri.app\/blog\/kerala-psc-everyday-science-questions-and-answers\/#Kerala_PSC_Everyday_Science_Model_Questions_Answers_2026\" >Kerala PSC Everyday Science Model Questions &amp; Answers 2026<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/entri.app\/blog\/kerala-psc-everyday-science-questions-and-answers\/#Preparation_Strategy_for_Everyday_Science_in_Kerala_PSC_Exams\" >Preparation Strategy for Everyday Science in Kerala PSC Exams<\/a><\/li><\/ul><\/nav><\/div>\n<p>Everyday Science is a distinct and heavily favored category within Kerala PSC General Knowledge papers \u2014 separate from textbook physics, chemistry, or biology. It tests how well candidates understand the science behind common household observations, kitchen phenomena, health habits, and everyday technology. Because these questions draw from practical experience rather than pure memorization, they are highly scoring once the underlying logic is understood. Cover the complete Science &amp; Technology syllabus through topic-wise questions, detailed explanations, and exam-oriented practice designed for Kerala PSC aspirants.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kerala_PSC_Everyday_Science_Questions_Answers_2026_%E2%80%93_Download_50_MCQs_PDF\"><\/span><strong>Kerala PSC Everyday Science Questions &amp; Answers 2026 &#8211; Download 50 MCQs PDF<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Looking for extra practice? Download the Kerala PSC Everyday Science 2026 MCQs PDF and solve a carefully curated set of objective questions covering important exam topics. Regular practice with these questions will help you improve speed, accuracy, and confidence for the Kerala PSC exam.<\/p>\n<div class=\"lead-gen-block\"><a href=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2026\/07\/Kerala-PSC-Everyday-Science-Questions-.pdf\" data-url=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2026\/07\/Kerala-PSC-Everyday-Science-Questions-.pdf\" class=\"lead-pdf-download\" data-id=\"25556384\">\n<p style=\"text-align: center;\"><button class=\"btn btn-default\">Kerala PSC Everyday SCIENCE Questions<\/button><\/p>\n<\/a><\/div>\n<h2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Why_Everyday_Science_Matters_in_Kerala_PSC_Exams\"><\/span><strong>Why Everyday Science Matters in Kerala PSC Exams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Everyday Science questions usually appear as 4 to 7 questions within the General Science section, distinct from formal academic science questions. These are often the easiest marks to secure in the entire paper, since they rely on logical reasoning about familiar situations rather than rote formulas.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Candidates preparing for the following exams will find this section especially relevant:<\/p>\n<div class=\"overflow-x-auto w-full px-2 mb-6 print:overflow-x-visible\" dir=\"ltr\">\n<table class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\">\n<thead class=\"text-left\">\n<tr>\n<th class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\">Exam<\/th>\n<th class=\"text-text-100 border-b-0.5 border-[hsl(var(--border-300)\/0.6)] py-2 pr-4 align-top font-bold\" scope=\"col\">Everyday Science Weightage<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">LDC (Lower Division Clerk)<\/td>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">4\u20136 questions<\/td>\n<\/tr>\n<tr>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">LGS (Last Grade Servant)<\/td>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">5\u20137 questions<\/td>\n<\/tr>\n<tr>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">Degree Level Prelims<\/td>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">5\u20137 questions<\/td>\n<\/tr>\n<tr>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">Secretariat Assistant<\/td>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">4\u20136 questions<\/td>\n<\/tr>\n<tr>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">University Assistant<\/td>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">3\u20135 questions<\/td>\n<\/tr>\n<tr>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">Police\/Excise Constable posts<\/td>\n<td class=\"border-b-0.5 border-[hsl(var(--border-300)\/0.3)] py-2 pr-4 align-top\">6\u20138 questions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Kerala_PSC_Everyday_Science_Model_Questions_Answers_2026\"><\/span><strong>Kerala PSC Everyday Science Model Questions &amp; Answers 2026<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" dir=\"ltr\" style=\"text-align: center;\">Section 1: Kitchen and Food Science<\/h4>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>1. Why does adding salt to water increase its boiling point?<\/strong><br \/>\nSalt raises the boiling point through a phenomenon called boiling point elevation \u2014 dissolved particles disrupt the water&#8217;s ability to form vapor bubbles easily, requiring more heat energy.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>2. Why do onions cause tears when cut?<\/strong><br \/>\nCutting onions releases a volatile compound (syn-propanethial-S-oxide) that irritates the eyes, triggering tear glands to flush it out.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>3. Why does milk curdle when lemon juice is added?<\/strong><br \/>\nThe acid in lemon juice lowers the pH of milk, causing milk proteins (casein) to denature and clump together.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>4. Why is a pressure cooker able to cook food faster than an open pan?<\/strong><br \/>\nSealed steam increases internal pressure, which raises the boiling point of water above 100\u00b0C, cooking food faster at higher temperatures.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>5. Why does ice float on water instead of sinking?<\/strong><br \/>\nIce is less dense than liquid water because its molecules form an open hexagonal crystal structure when frozen, occupying more space than in liquid form.<\/p>\n<h4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" dir=\"ltr\" style=\"text-align: center;\">Section 2: Health and Human Body Observations<\/h4>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>6. Why do we feel thirsty after eating salty food?<\/strong><br \/>\nExcess sodium increases blood osmotic pressure, prompting the brain&#8217;s hypothalamus to trigger thirst so the body can restore fluid balance.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>7. Why does skin wrinkle after staying in water for a long time?<\/strong><br \/>\nProlonged water exposure causes the outer skin layer to absorb water and swell, and the body&#8217;s nervous system also actively wrinkles skin on fingers\/toes to improve grip in wet conditions.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>8. Why do we see stars even after closing our eyes in a dark room?<\/strong><br \/>\nThis is due to spontaneous activity in the retina&#8217;s photoreceptor cells, which can fire signals even without external light, a phenomenon called phosphenes.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>9. Why does the body shiver in cold weather?<\/strong><br \/>\nShivering is an involuntary muscle contraction that generates heat to help maintain core body temperature.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>10. Why do fingers appear wrinkled but the rest of the body doesn&#8217;t after a bath?<\/strong><br \/>\nFingers and toes have a unique nerve response that triggers blood vessel constriction under the skin specifically in these areas when wet, unlike the rest of the body.<\/p>\n<h4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" dir=\"ltr\" style=\"text-align: center;\">Section 3: Weather, Light, and Natural Phenomena<\/h4>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>11. Why does the sky appear red during sunrise and sunset?<\/strong><br \/>\nAt low sun angles, sunlight passes through more atmosphere, scattering shorter blue wavelengths away and leaving longer red and orange wavelengths visible.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>12. Why do we hear thunder after seeing lightning?<\/strong><br \/>\nLight travels much faster than sound, so the flash of lightning reaches our eyes almost instantly while the sound takes longer to arrive.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>13. Why does a mirage appear on hot roads?<\/strong><br \/>\nHot air near the ground has a lower refractive index than cooler air above, bending light rays and creating an illusion of water on the road surface.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>14. Why does dew form on grass during early mornings?<\/strong><br \/>\nWarm, moisture-laden air cools overnight and reaches its dew point, causing water vapor to condense on cooler surfaces like grass.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>15. Why do clothes dry faster on a windy day than a calm day?<\/strong><br \/>\nWind continuously removes the layer of moist air near the fabric surface, speeding up the rate of evaporation.<\/p>\n<h4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" dir=\"ltr\" style=\"text-align: center;\">Section 4: Household Technology and Practical Physics<\/h4>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>16. Why does a metal spoon feel colder than a wooden spoon at the same room temperature?<\/strong><br \/>\nMetal is a better conductor of heat and draws heat away from the hand faster than wood, creating the sensation of being colder even though both are at the same temperature.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>17. Why does a fan feel cooling even though it doesn&#8217;t lower room temperature?<\/strong><br \/>\nMoving air increases the rate of sweat evaporation from the skin, which has a cooling effect on the body even though the air temperature itself remains unchanged.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>18. Why do we use silica gel packets in food and medicine packaging?<\/strong><br \/>\nSilica gel is a desiccant that absorbs moisture from the surrounding air, preventing dampness and spoilage inside sealed packaging.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>19. Why does a soda bottle fizz more when opened after shaking?<\/strong><br \/>\nShaking releases dissolved carbon dioxide from the liquid into small bubbles that cling to the container walls; opening the bottle causes rapid pressure release, forcing these bubbles out suddenly.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>20. Why does glass appear transparent while wood does not?<\/strong><br \/>\nGlass has a uniform, non-crystalline molecular structure that allows light to pass through with minimal scattering, while wood&#8217;s fibrous, irregular structure scatters and absorbs light.<\/p>\n<h4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" dir=\"ltr\" style=\"text-align: center;\">Section 5: Common Misconceptions and Practical Reasoning<\/h4>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>21. Does a heavier object always fall faster than a lighter one in a vacuum?<\/strong><br \/>\nNo \u2014 in the absence of air resistance, all objects fall at the same rate regardless of mass, as demonstrated by Galileo&#8217;s famous (disputed) Leaning Tower of Pisa experiment and later confirmed in vacuum chamber tests.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>22. Why does hot water sometimes freeze faster than cold water?<\/strong><br \/>\nThis counterintuitive observation, known as the Mpemba effect, is linked to factors like evaporation, convection currents, and dissolved gas content, though scientists still debate the exact mechanism.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>23. Why does touching a 9-volt battery to the tongue produce a tingling sensation but not with the hand?<\/strong><br \/>\nThe tongue&#8217;s moist surface and thinner skin allow a small current to complete a circuit and stimulate nerve endings, producing a mild tingling sensation not felt on drier, thicker skin.<\/p>\n<\/div>\n<h2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\" dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Preparation_Strategy_for_Everyday_Science_in_Kerala_PSC_Exams\"><\/span><strong>Preparation Strategy for Everyday Science in Kerala PSC Exams<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\" dir=\"ltr\">\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Focus on &#8220;why&#8221; rather than &#8220;what&#8221;<\/strong> \u2014 everyday science tests reasoning about cause and effect, so understanding the underlying principle matters more than memorizing the answer.<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Connect concepts to real-life observations<\/strong> you encounter daily \u2014 this builds intuitive recall during the exam rather than relying on memorized lists.<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Group questions by theme<\/strong> (kitchen, weather, body, household) rather than studying them randomly, since PSC often clusters similar reasoning patterns.<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Practice explaining answers in your own words<\/strong> \u2014 if you can explain why something happens, you can handle rephrased or reversed versions of the same question.<\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Revise using previous year papers<\/strong>, since Kerala PSC frequently reuses everyday science questions with minor wording changes across different posts.<\/li>\n<\/ol>\n<div class=\"modal\" id=\"modal25556384\"><div class=\"modal-content\"><span class=\"close-button\">&times;<\/span>\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f25556384-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"25556384\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/blog\/wp-json\/wp\/v2\/posts\/25559233#wpcf7-f25556384-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"25556384\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.6\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" 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data-appearance=\"always\"><\/div> <br class=\"cf-turnstile-br cf-turnstile-br-cf7-2970950667\"> <style>#cf-turnstile-cf7-2970950667 { margin-left: -15px; }<\/style> <script>document.addEventListener(\"DOMContentLoaded\",function(){document.querySelectorAll('.wpcf7-form').forEach(function(e){e.addEventListener('submit',function(){if(document.getElementById('cf-turnstile-cf7-2970950667')){setTimeout(function(){turnstile.reset('#cf-turnstile-cf7-2970950667');},1000)}})})});<\/script> <\/div><br\/><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Submit\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Everyday Science is a distinct and heavily favored category within Kerala PSC General Knowledge papers \u2014 separate from textbook physics, chemistry, or biology. It tests how well candidates understand the science behind common household observations, kitchen phenomena, health habits, and everyday technology. Because these questions draw from practical experience rather than pure memorization, they are [&hellip;]<\/p>\n","protected":false},"author":115,"featured_media":25655622,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[802,32],"tags":[],"class_list":["post-25559233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-kerala-psc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kerala PSC Everyday Science Questions &amp; Answers 2026 - PDF<\/title>\n<meta name=\"description\" content=\"Kerala PSC Everyday Science questions and answers for 10th, 12th &amp; Degree Level exams. 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