{"id":549,"date":"2020-01-20T08:56:20","date_gmt":"2020-01-20T06:56:20","guid":{"rendered":"https:\/\/blog.edu.turku.fi\/scienceed\/?p=549"},"modified":"2020-01-20T08:56:20","modified_gmt":"2020-01-20T06:56:20","slug":"vulkaner-vulkanutbrott","status":"publish","type":"post","link":"https:\/\/blog.edu.turku.fi\/scienceed\/2020\/01\/20\/vulkaner-vulkanutbrott\/","title":{"rendered":"Vulkaner &amp; Vulkanutbrott"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-1800 alignright\" src=\"https:\/\/blog.edu.turku.fi\/iktpedagogik\/files\/2020\/01\/Vulkan-201x251.png\" alt=\"\" width=\"201\" height=\"251\" \/>Vulkaner \u00e4r alltid fascinerande. H\u00e4r \u00e4r tv\u00e5 varianter.<\/p>\n<h2>Bakpulvervulkan<\/h2>\n<p>Forma en vulkan av leran. H\u00e4ll ett par skedar bakpulver i kratern. Droppa i ett par droppar karamellf\u00e4rg. Tag en sked eller pipett och droppa i ett par droppar vin\u00e4ger eller \u00e4ttika i bakpulvret. N\u00e4r vin\u00e4gern\/\u00e4ttikan droppas i bakpulvret b\u00f6rjar det fr\u00e4sa och bubbla. Blandningen av vin\u00e4gern\/\u00e4ttikan och bakpulvret j\u00e4ser \u00f6ver kanten p\u00e5 kratern och sv\u00e4mmar ut \u00f6ver vulkanens sidor.<\/p>\n<p><strong>F\u00f6rklaring:<\/strong> Bakpulvret \u00e4r en karbonat och best\u00e5r av salter. Alla karbonater utvecklar koldioxid om man h\u00e4ller p\u00e5 en syra, som \u00e4ttika eller vin\u00e4ger. Karbonatet reagerar med syran, vilket skapar bubblorna.<\/p>\n<p><em>Utvecklingar av experimentet<\/em><\/p>\n<ul>\n<li>Blir vulkanutbrottet likadant om man ist\u00e4llet h\u00e4ller vin\u00e4gern\/\u00e4ttikan f\u00f6rst i kratern, och sedan bakpulvret?<\/li>\n<li>Kan lavan f\u00f6ra med sig saker som man ploppar ner i kratern? Hur tunga kan de vara? Sockerpiller, str\u00f6ssel, papperskulor, indianp\u00e4rlor, tr\u00e4p\u00e4rlor, vad kan vi anv\u00e4nda?<\/li>\n<\/ul>\n<h2>Vulkan i flaska<\/h2>\n<p>H\u00e4ll bakpulver i en flaska (helst genomskinlig).\u00a0St\u00e4ll flaskan p\u00e5 en bricka. H\u00e4ll i \u00e4ttikan\/vin\u00e4gern i ett glas, tills\u00e4tt lite diskmedel och lite karamellf\u00e4rg. R\u00f6r om i blandningen. S\u00e4tt tratten p\u00e5 flaskan och h\u00e4ll i l\u00f6sningen.<\/p>\n<p><strong>F\u00f6rklaring:<\/strong> Vin\u00e4gern\/\u00e4ttikan reagerar med bakpulvret och bildar koldioxid. Diskmedlet g\u00f6r att det blir rej\u00e4la bubblor av koldioxiden. Flaskan blir full med skum, som till slut sv\u00e4mmar \u00f6ver!<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vulkaner \u00e4r alltid fascinerande. H\u00e4r \u00e4r tv\u00e5 varianter. Bakpulvervulkan Forma en vulkan av leran. H\u00e4ll ett par skedar bakpulver i kratern. Droppa i ett par droppar karamellf\u00e4rg. Tag en sked eller pipett och droppa i ett par droppar vin\u00e4ger eller \u00e4ttika i bakpulvret. N\u00e4r vin\u00e4gern\/\u00e4ttikan droppas i bakpulvret b\u00f6rjar det fr\u00e4sa och bubbla. Blandningen av &hellip; <a href=\"https:\/\/blog.edu.turku.fi\/scienceed\/2020\/01\/20\/vulkaner-vulkanutbrott\/\" class=\"more-link\">Forts\u00e4tt l\u00e4sa<span class=\"screen-reader-text\"> \u201dVulkaner &amp; Vulkanutbrott\u201d<\/span><\/a><\/p>\n","protected":false},"author":2590,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[218347],"tags":[],"class_list":["post-549","post","type-post","status-publish","format-standard","hentry","category-veckans-ide"],"_links":{"self":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts\/549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/users\/2590"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/comments?post=549"}],"version-history":[{"count":2,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts\/549\/revisions"}],"predecessor-version":[{"id":551,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts\/549\/revisions\/551"}],"wp:attachment":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/media?parent=549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/categories?post=549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/tags?post=549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}