{"id":3620,"date":"2023-01-09T09:50:41","date_gmt":"2023-01-09T09:50:41","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=3620"},"modified":"2025-07-26T07:01:50","modified_gmt":"2025-07-26T07:01:50","slug":"s-1-a-matter-in-our-surroundings","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-1-a-matter-in-our-surroundings\/","title":{"rendered":"S-1.a Matter In Our Surroundings"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Matter In Our Surroundings<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/82g83wv_5so?si=NUkUY4n8zze-cZ80\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes:<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-942bc1d6c5b67539853d6823313cc564\" style=\"color:#000060;background-color:#dfc816\"><strong>Definition of Matter<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Matter is anything that has mass and occupies space.<\/li>\n\n\n\n<li>It can be perceived through the senses.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-0c5ff4ef59d72b688ad33d01d6f5679b\" style=\"color:#000060;background-color:#dfc816\"><strong>Physical Nature of Matter<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"518\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-25-1024x518.png\" alt=\"\" class=\"wp-image-15981\" style=\"width:459px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-25-1024x518.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-25-300x152.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-25-768x389.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-25.png 1075w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Matter is made up of tiny particles.<\/li>\n\n\n\n<li>These particles are too small to be seen with the naked eye.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color wp-elements-573e30849e2d27d77fead1106b280baf\" style=\"color:#000060;background-color:#dfc816\"><strong>Characteristics of Particles of Matter<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"306\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/4310221d-6810-44ec-b81d-ae147a9998c5.png\" alt=\"\" class=\"wp-image-15983\" style=\"width:561px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/4310221d-6810-44ec-b81d-ae147a9998c5.png 750w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/4310221d-6810-44ec-b81d-ae147a9998c5-300x122.png 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Particles are continuously moving<\/strong>: They possess kinetic energy and move faster at higher temperatures.<\/li>\n\n\n\n<li><strong>Particles have space between them<\/strong>: The space determines the state of matter (solid, liquid, or gas).<\/li>\n\n\n\n<li><strong>Particles attract each other<\/strong>: The force of attraction varies among solids, liquids, and gases.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color wp-elements-8fa00db91be8b00dae17596397d78fb5\" style=\"color:#000060;background-color:#dfc816\"><strong>States of Matter<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"875\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-26-1024x875.png\" alt=\"\" class=\"wp-image-15984\" style=\"width:377px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-26-1024x875.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-26-300x256.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-26-768x656.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-26.png 1059w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Solids<\/strong>: Fixed shape and volume, strong intermolecular force, minimal particle movement.<\/li>\n\n\n\n<li><strong>Liquids<\/strong>: Fixed volume, take the shape of the container, weaker intermolecular force compared to solids, particles can slide past each other.<\/li>\n\n\n\n<li><strong>Gases<\/strong>: No fixed shape or volume, very weak intermolecular force, particles move freely and quickly.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color wp-elements-4f0f892dc29ada2c8509dffbda7539cc\" style=\"color:#000060;background-color:#dfc816\"><strong>Changes in States of Matter<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"431\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-29.png\" alt=\"\" class=\"wp-image-15987\" style=\"width:384px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-29.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-29-300x259.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Effect of Temperature<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Increasing temperature increases the kinetic energy of particles, causing changes in state (solid to liquid to gas).<\/li>\n\n\n\n<li>Melting point: Temperature at which a solid turns into a liquid.<\/li>\n\n\n\n<li>Boiling point: Temperature at which a liquid turns into gas.<\/li>\n\n\n\n<li>Sublimation: Some solids directly change into gas without becoming liquid (e.g., camphor, iodine).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Effect of Pressure<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Increasing pressure can change a gas to a liquid by bringing particles closer.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-a64eb2e48ecbb65eacf815d579dd322d\" style=\"color:#000060;background-color:#dfc816\"><strong>Latent Heat<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"424\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-51.png\" alt=\"\" class=\"wp-image-15988\" style=\"width:497px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-51.png 750w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-51-300x170.png 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Latent heat of fusion<\/strong>: Heat required to change 1 kg of a solid into a liquid without changing temperature.<\/li>\n\n\n\n<li><strong>Latent heat of vaporization<\/strong>: Heat required to change 1 kg of a liquid into gas without changing temperature.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color wp-elements-065992bfd36f8503a3851644b450b5cd\" style=\"color:#000060;background-color:#dfc816\"><strong>Evaporation<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Process of liquid changing into vapor at a temperature below its boiling point.<\/li>\n\n\n\n<li>Factors affecting evaporation:\n<ul class=\"wp-block-list\">\n<li><strong>Surface area<\/strong>: More area leads to faster evaporation.<\/li>\n\n\n\n<li><strong>Temperature<\/strong>: Higher temperature increases evaporation rate.<\/li>\n\n\n\n<li><strong>Humidity<\/strong>: Higher humidity decreases evaporation rate.<\/li>\n\n\n\n<li><strong>Wind speed<\/strong>: Faster wind increases evaporation.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color has-large-font-size wp-elements-50b7b29497e84657680c3a50cb40bf8b\" style=\"color:#000060;background-color:#dfc816\"><strong>Cooling Effect of Evaporation<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"985\" height=\"425\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-30.png\" alt=\"\" class=\"wp-image-15989\" style=\"width:533px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-30.png 985w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-30-300x129.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-30-768x331.png 768w\" sizes=\"auto, (max-width: 985px) 100vw, 985px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>During evaporation, particles absorb energy from their surroundings, leading to a cooling effect (e.g., perspiration cools the body).<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s practice!<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/95193\/347\/293\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2.png\" alt=\"\" class=\"wp-image-6268\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/75846\/756\/467\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1.png\" alt=\"\" class=\"wp-image-6269\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Matter In Our Surroundings Key Notes: Definition of Matter Physical Nature of Matter Characteristics of Particles of Matter States of Matter Changes in States of Matter Latent Heat Evaporation Cooling Effect of Evaporation Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3620","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3620","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3620"}],"version-history":[{"count":31,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3620\/revisions"}],"predecessor-version":[{"id":17188,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3620\/revisions\/17188"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}