{"id":3875,"date":"2023-01-09T10:43:33","date_gmt":"2023-01-09T10:43:33","guid":{"rendered":"https:\/\/7thclass.deltapublications.in\/?page_id=3875"},"modified":"2024-12-12T05:55:47","modified_gmt":"2024-12-12T05:55:47","slug":"s-9-d-properties-of-soil","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-9-d-properties-of-soil\/","title":{"rendered":"S-9.d Properties Of Soil"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Properties Of Soil<\/strong><\/h2>\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-color has-link-color has-large-font-size wp-elements-06fbbc0644e74865aeb504d7418294be\" style=\"color:#000060\">1. <strong>Definition of Soil<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Soil is the top layer of the Earth&#8217;s crust, composed of minerals, organic matter, air, and water.<\/li>\n\n\n\n<li>It supports plant growth and is a vital part of the ecosystem.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-3348fa597b57f1db2d661eeab4736848\" style=\"color:#000060\">2. <strong>Components of Soil<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Mineral Particles<\/strong>: Sand, silt, and clay.<\/li>\n\n\n\n<li><strong>Organic Matter<\/strong>: Decayed plants and animals.<\/li>\n\n\n\n<li><strong>Water<\/strong>: Essential for plant growth.<\/li>\n\n\n\n<li><strong>Air<\/strong>: Needed by roots and soil organisms.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-4f668bfdbe5e63fe7e734f19c35adf60\" style=\"color:#000060\">3. <strong>Soil Texture<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Determined by the size of soil particles:\n<ul class=\"wp-block-list\">\n<li><strong>Sand<\/strong>: Largest particles, coarse, drains quickly.<\/li>\n\n\n\n<li><strong>Silt<\/strong>: Medium-sized particles, smooth texture.<\/li>\n\n\n\n<li><strong>Clay<\/strong>: Smallest particles, sticky, retains water.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-4da1c5501d0fdbf8b3ed9023fb38f22f\" style=\"color:#000060\">4. <strong>Soil Structure<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Refers to how soil particles bind together.<\/li>\n\n\n\n<li>Types include granular, blocky, and platy structures.<\/li>\n\n\n\n<li>Affects water retention and root penetration.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-1f078928c8ac452c1e0ff492292b8330\" style=\"color:#000060\">5. <strong>Soil pH<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Indicates acidity or alkalinity of the soil.<\/li>\n\n\n\n<li>Scale ranges from 0 to 14:\n<ul class=\"wp-block-list\">\n<li><strong>Acidic Soil<\/strong>: pH &lt; 7 (e.g., forest soils).<\/li>\n\n\n\n<li><strong>Neutral Soil<\/strong>: pH = 7 (ideal for most plants).<\/li>\n\n\n\n<li><strong>Alkaline Soil<\/strong>: pH > 7 (e.g., desert soils).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-ce51fbb1af32bc7222eb3b3a66e1166b\" style=\"color:#000060\">6. <strong>Water Retention Capacity<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Ability of soil to hold water:\n<ul class=\"wp-block-list\">\n<li><strong>Clay Soil<\/strong>: High retention but poor drainage.<\/li>\n\n\n\n<li><strong>Sandy Soil<\/strong>: Low retention, drains quickly.<\/li>\n\n\n\n<li><strong>Loamy Soil<\/strong>: Balanced retention and drainage, ideal for farming.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-56990211081c85a3a0b8b6c5bea6962e\" style=\"color:#000060\">7. <strong>Permeability<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Determines how easily water passes through soil.<\/li>\n\n\n\n<li>Sand has high permeability; clay has low permeability.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-0c36e64ec8eaed1baf1a65a1b48784ec\" style=\"color:#000060\">8. <strong>Soil Color<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Indicates its composition and fertility:\n<ul class=\"wp-block-list\">\n<li><strong>Dark Soil<\/strong>: Rich in organic matter.<\/li>\n\n\n\n<li><strong>Red or Yellow Soil<\/strong>: Contains iron oxides.<\/li>\n\n\n\n<li><strong>Pale Soil<\/strong>: Poor in nutrients.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-e97c2d09c43eb34181a06ae9a106775e\" style=\"color:#000060\">9. <strong>Soil Horizons<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Different layers in soil:\n<ul class=\"wp-block-list\">\n<li><strong>Topsoil (A Horizon)<\/strong>: Rich in nutrients and organic matter.<\/li>\n\n\n\n<li><strong>Subsoil (B Horizon)<\/strong>: Contains minerals leached from topsoil.<\/li>\n\n\n\n<li><strong>Parent Material (C Horizon)<\/strong>: Composed of weathered rocks.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-8190513ac980c41727ebfbb2993f39a3\" style=\"color:#000060\">10. <strong>Soil Erosion<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>The removal of topsoil by wind, water, or human activities.<\/li>\n\n\n\n<li>Prevention methods:\n<ul class=\"wp-block-list\">\n<li>Planting vegetation.<\/li>\n\n\n\n<li>Building terraces.<\/li>\n\n\n\n<li>Using cover crops.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-0bf657762fa44b5f819e12b53dc0119a\" style=\"color:#000060\">11. <strong>Importance of Soil<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Provides nutrients for plants.<\/li>\n\n\n\n<li>Stores and filters water.<\/li>\n\n\n\n<li>Supports habitats for organisms.<\/li>\n\n\n\n<li>Plays a role in the Earth&#8217;s carbon and nitrogen cycles.<\/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\/81735\/863\/137\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-41.png\" alt=\"\" class=\"wp-image-5964\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-41.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-41-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-41-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-41-400x400.png 400w\" 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\/81671\/395\/256\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-36.png\" alt=\"\" class=\"wp-image-5965\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-36.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-36-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-36-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-36-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Properties Of Soil Key Notes : 1. Definition of Soil 2. Components of Soil 3. Soil Texture 4. Soil Structure 5. Soil pH 6. Water Retention Capacity 7. Permeability 8. Soil Color 9. Soil Horizons 10. Soil Erosion 11. Importance of Soil 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,"footnotes":""},"class_list":["post-3875","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3875"}],"version-history":[{"count":13,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3875\/revisions"}],"predecessor-version":[{"id":15259,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3875\/revisions\/15259"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}