{"id":7242,"date":"2020-08-25T07:41:44","date_gmt":"2020-08-25T05:41:44","guid":{"rendered":"https:\/\/happylearning.tv\/light-and-materials\/"},"modified":"2020-08-25T07:41:44","modified_gmt":"2020-08-25T05:41:44","slug":"light-and-materials","status":"publish","type":"post","link":"https:\/\/happylearning.tv\/en\/light-and-materials\/","title":{"rendered":"LIGHT AND MATERIALS"},"content":{"rendered":"<div itemscope itemtype=\"http:\/\/schema.org\/VideoObject\"><meta itemprop=\"name\" content=\"LIGHT AND MATERIALS\"><meta itemprop=\"thumbnailUrl\" content=\"https:\/\/vod-origin.globalmest.net\/EyDmR5\/RaEE1p\/RaEE1p-320.jpg\"><meta itemprop=\"contentUrl\" content=\"https:\/\/account.globalmest.com\/wQkdyd\/RaEE1p.html\"><script type=\"application\/javascript\" src=\"https:\/\/account.globalmest.com\/wQkdyd\/RaEE1p.js\"><\/script><\/div><p><strong>Share<\/strong><\/p>\n<p style=\"text-align: left;\"><strong>Watch in a different language<\/strong><\/p>\n<p>Not available<span style=\"font-size: 14pt;\">You also might like this&#8230;<\/span><\/p>\n<h2>LIGHT AND MATERIALS<\/h2>\n<p>Hello Happy friends!\u2028Are you ready to learn? \u2028I\u2019m Sarah, and today, we\u2019re going to talk\u2026 about light and materials.<br \/>\nLight is a form of energy that luminous bodies emit, and it allows us to see though the sense of seeing. \u2028When there\u2019s no light, we can\u2019t see anything! Like now!<br \/>\nTurn on the light again please!<br \/>\nThere are two types of light: natural and artificial.<br \/>\nNatural lights are the sun, and fire\u2028- \u2028and artificial light can be\u2026 a bulb\u2026 a fluorescent tube\u2026 or a torch!<br \/>\n-\u2028The great majority of artificial lights, work with electric energy. \u2028 Light always travels in a straight line, and in all directions, and it reaches a speed of 3 hundred thousand km\/s.<br \/>\nBut\u2026 can light pass through all materials? No! it cannot! \u2028Depending on wether light can go through materials or not, we classify them into: opaque, translucent or transparent.<br \/>\nOpaque materials don\u2019t allow light to go through them. I\u2019m opaque, light can\u2019t pass through me.<br \/>\nTranslucent materials allow some light to go through them, but not entirely. That\u2019s why you can\u2019t properly see what\u2019s behind this plastic.\u2028You can see something pink, but you don\u2019t exactly know what there is behind it do you?\u2028Well it\u2019s\u2026 a piglet!<br \/>\nTransparent Materials allow all light rays pass though them, that\u2019s why we can perfectly see though them. Like.. the glass in this cup&#8230;or the glass on this window, where we can see a beautiful scenery. \u2028 Goodbye Happy Friends, See you next time!\u2028\u2028I hope you\u2019re always ready to learn! \u2028\u2028Goodbyee!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LEARN WITH SARAH. There are two types of light: natural and artificial.\u2028<\/p>\n","protected":false},"author":2,"featured_media":5224,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1380,1376],"tags":[],"class_list":["post-7242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geography-and-natural-sciences","category-learn-with-sara"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LIGHT AND MATERIALS | Happy Learning<\/title>\n<meta name=\"description\" content=\"LEARN WITH SARAH.There are two types of light: natural and artificial.\u2028\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/happylearning.tv\/en\/light-and-materials\/\" 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