{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Making Silicon Looking into Compounds and Making Silica' data-url='/boclips/videos/66bb4cee2ebf81380feca91e' data-video-url='/boclips/videos/66bb4cee2ebf81380feca91e' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nMaking Silicon Looking into Compounds and Making Silica\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eSilicon compounds | Silicates , earth crust |Natural occurance | Silica SiO2 | Polymorphism | Quartz  | Japer  |Onyz | Kieselguhr | Diatoms in sea |SiO2 preparation  | oxidation of silica  | orthosilisic acid  Silicates, primarily...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eSilicon compounds | Silicates , earth crust |Natural occurance | Silica SiO2 | Polymorphism | Quartz  | Japer  |Onyz | Kieselguhr | Diatoms in sea |SiO2 preparation  | oxidation of silica  | orthosilisic acid  Silicates, primarily composed of silicon and oxygen atoms, are the most abundant group of minerals in the Earth's crust, accounting for approximately 90% of its volume. They have diverse structures and properties and are found in various forms such as feldspars, micas, amphiboles, and pyroxenes. Silica (SiO2), a naturally occurring compound, is found abundantly in the Earth's crust and plays a crucial role in geological processes and industrial applications like glassmaking, ceramics, and electronics.\u003cbr/\u003e\u003cbr/\u003eSilica exhibits polymorphism, with quartz, cristobalite, and tridymite being common polymorphs with distinct crystal structures and thermal stability. Quartz is a hexagonal crystal structure and is widely used in electronics, optics, and jewelry industries. Jasper and onyx are varieties of cryptocrystalline silica, also known as chalcedony, characterized by their fine-grained texture and vibrant colors.\u003cbr/\u003e\u003cbr/\u003eKieselguhr, or diatomaceous earth, is a sedimentary rock composed of the fossilized remains of microscopic algae with silica cell walls. It is porous and lightweight, useful in filtration, absorbents, and insecticides. Silica can be prepared through various methods, including extraction from natural sources, chemical processes, and thermal processes.\u003cbr/\u003e\u003cbr/\u003eOxidation of silica occurs under certain conditions, such as exposure to oxygen at high temperatures, forming silicon oxide (SiO2). This process can occur naturally over geological time scales or through controlled processes in industrial settings. Orthosilicic acid (H4SiO4) is a hydrated form of silica formed by hydrolysis of silicate minerals or dissolution in water.\u003cbr/\u003e\u003cbr/\u003eIn summary, understanding the natural occurrences, polymorphism, preparation methods, and chemical properties of silicon compounds provides insights into their significance in geological, industrial, and biological processes.\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource Details\u003c/h2\u003e\n\u003cdiv 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style='display: none;' type='button'\u003e\n\u003cspan\u003eShow Less\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-caret-up ml5'\u003e\u003c/i\u003e\n\u003c/button\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='additional-tags-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='additional-tags-heading'\u003eAdditional Tags\u003c/h2\u003e\n\u003cdiv class='clearfix'\u003e\n\u003cdiv class='details-list keyterms' data-identifier='Boclips::VideoDecorator66bb4cee2ebf81380feca91e' data-type='keyterms'\u003esilicon compounds, silicates, earth crust, natural occurance, silica sio2, polymorphism, japer, onyz, kieselguhr, diatoms in sea, sio2 preparation, oxidation of silica, orthosilisic acid silicon compounds are chemical compounds that contain silicon as a central atom bonded to other elements, typically oxygen, and various metals. they are the second most abundant element in the earth\u0026#39;s crust after oxygen and play crucial roles in various industrial, technological, and biological processes. silicon is abundant in nature, primarily occurring in the form of silicon dioxide (sio₂), commonly known as silica or quartz. it constitutes approximately 59% of the earth\u0026#39;s crust by weight and is present in various silicate minerals, and other elements such as aluminum, and calcium. these minerals are the primary constituents of rocks, soils, and minerals, and they play a crucial role in the geological processes shaping the earth\u0026#39;s surface. examples of common silicate minerals include feldspar, olive, mica, amphibole, silicon is found in various biological organisms and organic compounds. in plants, silicon is absorbed from the soil and incorporated into cell walls, providing structural support and protection against pathogens and pests. in diatoms, microscopic algae, and sponges, and concrete, while silicone-based compounds like silicones and silanes are widely used in sealants, adhesives, lubricants, and coatings due to their thermal stability, water repellency, and chemical inertness. silicon is also a key component in semiconductor devices, and electronics, silicon compounds are abundant in nature and have diverse applications in various fields, including geology, biology, and technology. their chemical composition varies depending on their specific structure and intended application, but typically contains silicon atoms bonded to other elements such as oxygen, and various metals., called polymorphism, amorphous form, pure form, silicon dioxide, form, forms, silica, sio 2\u003c/div\u003e\n\u003cdiv class='keyterms-toggle-buttons' data-identifier='Boclips::VideoDecorator66bb4cee2ebf81380feca91e'\u003e\n\u003cbutton aria-expanded='false' class='more btn-link' type='button'\u003e\n\u003cspan\u003eShow More\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-caret-down ml5'\u003e\u003c/i\u003e\n\u003c/button\u003e\n\u003cbutton aria-expanded='true' 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