{"id":3845,"date":"2023-01-09T10:31:28","date_gmt":"2023-01-09T10:31:28","guid":{"rendered":"https:\/\/8thclass.deltapublications.in\/?page_id=3845"},"modified":"2025-08-21T12:02:43","modified_gmt":"2025-08-21T12:02:43","slug":"s-3-d-plastics","status":"publish","type":"page","link":"https:\/\/8thclass.deltapublications.in\/index.php\/s-3-d-plastics\/","title":{"rendered":"s-3.d Plastics"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Plastics<\/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<div style=\"position: relative; width: 100%; height: 0; padding-top: 56.2500%;\n padding-bottom: 0; box-shadow: 0 2px 8px 0 rgba(63,69,81,0.16); margin-top: 1.6em; margin-bottom: 0.9em; overflow: hidden;\n border-radius: 8px; will-change: transform;\">\n  <iframe loading=\"lazy\" style=\"position: absolute; width: 100%; height: 100%; top: 0; left: 0; border: none; padding: 0;margin: 0;\"\n    src=\"https:\/\/www.canva.com\/design\/DAF4DXuf5n4\/SSAbRJC10b4DyoOMmIn4pw\/watch?embed\" allowfullscreen=\"allowfullscreen\" allow=\"fullscreen\">\n  <\/iframe>\n<\/div>\n<a href=\"https:&#x2F;&#x2F;www.canva.com&#x2F;design&#x2F;DAF4DXuf5n4&#x2F;SSAbRJC10b4DyoOMmIn4pw&#x2F;watch?utm_content=DAF4DXuf5n4&amp;utm_campaign=designshare&amp;utm_medium=embeds&amp;utm_source=link\" target=\"_blank\" rel=\"noopener\">plastic<\/a> by Delta publications\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-d837fe1005aa0fff23f94d76f79171ef\" style=\"color:#74008b\"><strong>key notes <\/strong>:<\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-d9f110a808feb49f076aca4c010c2b10\" style=\"color:#000060\"><strong>Definition of Plastics<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/image-18-1024x576.png\" alt=\"\" class=\"wp-image-12000\" style=\"width:364px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/image-18-1024x576.png 1024w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/image-18-300x169.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/image-18-768x432.png 768w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/image-18-1536x864.png 1536w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/image-18-1568x882.png 1568w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/10\/image-18.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Plastics are synthetic or semi-synthetic materials made from polymers.<\/li>\n\n\n\n<li>Polymers are large molecules composed of repeated subunits (monomers).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-f100a96e9c1cc2eea9ac4f3a0c3ce982\" style=\"color:#000060\"><strong>Types of Plastics<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Thermoplastics<\/strong>: Plastics that can be melted and reshaped repeatedly (e.g., polyethylene, PVC).<\/li>\n\n\n\n<li><strong>Thermosetting Plastics<\/strong>: Plastics that harden irreversibly when heated (e.g., Bakelite, melamine).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-1bfa0698861c34169ad1f1d43b90bb14\" style=\"color:#000060\"><strong>Characteristics of Plastics<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Lightweight<\/li>\n\n\n\n<li>Durable and strong<\/li>\n\n\n\n<li>Waterproof and resistant to chemicals<\/li>\n\n\n\n<li>Insulators of heat and electricity<\/li>\n\n\n\n<li>Non-biodegradable (most plastics)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-01ca96546d12a02f6c641d5dbe058455\" style=\"color:#000060\"><strong>Common Uses of Plastics<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Packaging (e.g., bags, bottles)<\/li>\n\n\n\n<li>Construction (e.g., pipes, insulation)<\/li>\n\n\n\n<li>Household items (e.g., furniture, containers)<\/li>\n\n\n\n<li>Electronics (e.g., casings, wiring insulation)<\/li>\n\n\n\n<li>Medical equipment (e.g., syringes, prosthetics)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-b6b2e59b0b1c3ab78e4a6853a6f01652\" style=\"color:#000060\"><strong>Advantages of Plastics<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-109-1024x682.png\" alt=\"\" class=\"wp-image-18756\" style=\"width:449px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-109-1024x682.png 1024w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-109-300x200.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-109-768x512.png 768w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-109.png 1240w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Cost-effective and versatile<\/li>\n\n\n\n<li>Resistant to corrosion and moisture<\/li>\n\n\n\n<li>Can be molded into various shapes<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-44299d72c38aa7f0d22dcf33a1657ef2\" style=\"color:#000060\"><strong>Disadvantages of Plastics<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"259\" height=\"194\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-110.png\" alt=\"\" class=\"wp-image-18757\"\/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Non-biodegradable: Causes long-term environmental pollution.<\/li>\n\n\n\n<li>Harmful when burned: Releases toxic gases like dioxins.<\/li>\n\n\n\n<li>Overuse of plastics contributes to landfill and ocean pollution.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-b3175e792aadc256ab9dcd09804e084f\" style=\"color:#000060\"><strong>Environmental Impact<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"679\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-112-1024x679.png\" alt=\"\" class=\"wp-image-18759\" style=\"width:352px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-112-1024x679.png 1024w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-112-300x199.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-112-768x509.png 768w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-112.png 1500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Plastics contribute to soil, water, and air pollution.<\/li>\n\n\n\n<li>Microplastics harm marine life and enter the food chain.<\/li>\n\n\n\n<li>Difficulty in recycling due to mixed plastic types.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-4b02043e719274421254d6ca3cc86e38\" style=\"color:#000060\"><strong>Recycling and Management<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"450\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-113.png\" alt=\"\" class=\"wp-image-18760\" style=\"width:447px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-113.png 750w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-113-300x180.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>Reduce<\/strong>: Minimize the use of plastics.<\/li>\n\n\n\n<li><strong>Reuse<\/strong>: Repurpose plastic products to extend their life.<\/li>\n\n\n\n<li><strong>Recycle<\/strong>: Convert waste plastics into new products.<\/li>\n\n\n\n<li><strong>Recovery<\/strong>: Extract energy or materials from waste plastics.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-f7d9a2b502de78c5f0c07a32db375904\" style=\"color:#000060\"><strong>Biodegradable Plastics<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Made from natural materials like starch or corn.<\/li>\n\n\n\n<li>Decomposes more easily under natural conditions.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\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\/75918\/629\/869\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-56.png\" alt=\"\" class=\"wp-image-7598\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-56.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-56-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-56-150x150.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\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-55.png\" alt=\"\" class=\"wp-image-7599\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-55.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-55-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-55-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Plastics plastic by Delta publications key notes : Definition of Plastics: Types of Plastics: Characteristics of Plastics: Common Uses of Plastics: Advantages of Plastics: Disadvantages of Plastics: Environmental Impact: Recycling and Management: Biodegradable Plastics: 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-3845","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3845"}],"version-history":[{"count":25,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3845\/revisions"}],"predecessor-version":[{"id":21313,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3845\/revisions\/21313"}],"wp:attachment":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}